text:
namespace Microsoft.Azure.Management.CognitiveServices
{
    using Microsoft.Rest;
    using Microsoft.Rest.Azure;
    using Models;
    using Newtonsoft.Json;
    using System.Collections;
    using System.Collections.Generic;
    using System.Linq;
    using System.Net;
    using System.Net.Http;
    using System.Threading;
    using System.Threading.Tasks;

    /// <summary>
    /// AccountsOperations operations.
    /// </summary>
    internal partial class AccountsOperations : IServiceOperations<CognitiveServicesManagementClient>, IAccountsOperations
    {
        /// <summary>
        /// Initializes a new instance of the AccountsOperations class.
        /// </summary>
        /// <param name='client'>
        /// Reference to the service client.
        /// </param>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        internal AccountsOperations(CognitiveServicesManagementClient client)
        {
            if (client == null)
            {
                throw new System.ArgumentNullException("client");
            }
            Client = client;
        }

        /// <summary>
        /// Gets a reference to the CognitiveServicesManagementClient
        /// </summary>
        public CognitiveServicesManagementClient Client { get; private set; }

        /// <summary>
        /// Create Cognitive Services Account. Accounts is a resource group wide
        /// resource type. It holds the keys for developer to access intelligent APIs.
        /// It's also the resource type for billing.
        /// </summary>
        /// <param name='resourceGroupName'>
        /// The name of the resource group. The name is case insensitive.
        /// </param>
        /// <param name='accountName'>
        /// The name of Cognitive Services account.
        /// </param>
        /// <param name='account'>
        /// The parameters to provide for the created account.
        /// </param>
        /// <param name='customHeaders'>
        /// The headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        public async Task<AzureOperationResponse<Account>> CreateWithHttpMessagesAsync(string resourceGroupName, string accountName, Account account, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            // Send Request
            AzureOperationResponse<Account> _response = await BeginCreateWithHttpMessagesAsync(resourceGroupName, accountName, account, customHeaders, cancellationToken).ConfigureAwait(false);
            return await Client.GetPutOrPatchOperationResultAsync(_response, customHeaders, cancellationToken).ConfigureAwait(false);
        }

        /// <summary>
        /// Updates a Cognitive Services account
        /// </summary>
        /// <param name='resourceGroupName'>
        /// The name of the resource group. The name is case insensitive.
        /// </param>
        /// <param name='accountName'>
        /// The name of Cognitive Services account.
        /// </param>
        /// <param name='account'>
        /// The parameters to provide for the created account.
        /// </param>
        /// <param name='customHeaders'>
        /// The headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        public async Task<AzureOperationResponse<Account>> UpdateWithHttpMessagesAsync(string resourceGroupName, string accountName, Account account, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            // Send Request
            AzureOperationResponse<Account> _response = await BeginUpdateWithHttpMessagesAsync(resourceGroupName, accountName, account, customHeaders, cancellationToken).ConfigureAwait(false);
            return await Client.GetPutOrPatchOperationResultAsync(_response, customHeaders, cancellationToken).ConfigureAwait(false);
        }

        /// <summary>
        /// Deletes a Cognitive Services account from the resource group.
        /// </summary>
        /// <param name='resourceGroupName'>
        /// The name of the resource group. The name is case insensitive.
        /// </param>
        /// <param name='accountName'>
        /// The name of Cognitive Services account.
        /// </param>
        /// <param name='customHeaders'>
        /// The headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        public async Task<AzureOperationResponse> DeleteWithHttpMessagesAsync(string resourceGroupName, string accountName, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            // Send request
            AzureOperationResponse _response = await BeginDeleteWithHttpMessagesAsync(resourceGroupName, accountName, customHeaders, cancellationToken).ConfigureAwait(false);
            return await Client.GetPostOrDeleteOperationResultAsync(_response, customHeaders, cancellationToken).ConfigureAwait(false);
        }

        /// <summary>
        /// Returns a Cognitive Services account specified by the parameters.
        /// </summary>
        /// <param name='resourceGroupName'>
        /// The name of the resource group. The name is case insensitive.
        /// </param>
        /// <param name='accountName'>
        /// The name of Cognitive Services account.
        /// </param>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="SerializationException">
        /// Thrown when unable to deserialize the response
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse<Account>> GetWithHttpMessagesAsync(string resourceGroupName, string accountName, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (resourceGroupName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "resourceGroupName");
            }
            if (resourceGroupName != null)
            {
                if (resourceGroupName.Length > 90)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "resourceGroupName", 90);
                }
                if (resourceGroupName.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "resourceGroupName", 1);
                }
            }
            if (accountName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "accountName");
            }
            if (accountName != null)
            {
                if (accountName.Length > 64)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "accountName", 64);
                }
                if (accountName.Length < 2)
                {
                    throw new ValidationException(ValidationRules.MinLength, "accountName", 2);
                }
                if (!System.Text.RegularExpressions.Regex.IsMatch(accountName, "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$"))
                {
                    throw new ValidationException(ValidationRules.Pattern, "accountName", "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$");
                }
            }
            if (Client.ApiVersion == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.ApiVersion");
            }
            if (Client.ApiVersion != null)
            {
                if (Client.ApiVersion.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.ApiVersion", 1);
                }
            }
            if (Client.SubscriptionId == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.SubscriptionId");
            }
            if (Client.SubscriptionId != null)
            {
                if (Client.SubscriptionId.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.SubscriptionId", 1);
                }
            }
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("resourceGroupName", resourceGroupName);
                tracingParameters.Add("accountName", accountName);
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "Get", tracingParameters);
            }
            // Construct URL
            var _baseUrl = Client.BaseUri.AbsoluteUri;
            var _url = new System.Uri(new System.Uri(_baseUrl + (_baseUrl.EndsWith("/") ? "" : "/")), "subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts/{accountName}").ToString();
            _url = _url.Replace("{resourceGroupName}", System.Uri.EscapeDataString(resourceGroupName));
            _url = _url.Replace("{accountName}", System.Uri.EscapeDataString(accountName));
            _url = _url.Replace("{subscriptionId}", System.Uri.EscapeDataString(Client.SubscriptionId));
            List<string> _queryParameters = new List<string>();
            if (Client.ApiVersion != null)
            {
                _queryParameters.Add(string.Format("api-version={0}", System.Uri.EscapeDataString(Client.ApiVersion)));
            }
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("GET");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse<Account>();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            // Deserialize Response
            if ((int)_statusCode == 200)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<Account>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

        /// <summary>
        /// Returns all the resources of a particular type belonging to a resource
        /// group
        /// </summary>
        /// <param name='resourceGroupName'>
        /// The name of the resource group. The name is case insensitive.
        /// </param>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="SerializationException">
        /// Thrown when unable to deserialize the response
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse<IPage<Account>>> ListByResourceGroupWithHttpMessagesAsync(string resourceGroupName, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (resourceGroupName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "resourceGroupName");
            }
            if (resourceGroupName != null)
            {
                if (resourceGroupName.Length > 90)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "resourceGroupName", 90);
                }
                if (resourceGroupName.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "resourceGroupName", 1);
                }
            }
            if (Client.SubscriptionId == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.SubscriptionId");
            }
            if (Client.SubscriptionId != null)
            {
                if (Client.SubscriptionId.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.SubscriptionId", 1);
                }
            }
            if (Client.ApiVersion == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.ApiVersion");
            }
            if (Client.ApiVersion != null)
            {
                if (Client.ApiVersion.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.ApiVersion", 1);
                }
            }
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("resourceGroupName", resourceGroupName);
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "ListByResourceGroup", tracingParameters);
            }
            // Construct URL
            var _baseUrl = Client.BaseUri.AbsoluteUri;
            var _url = new System.Uri(new System.Uri(_baseUrl + (_baseUrl.EndsWith("/") ? "" : "/")), "subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts").ToString();
            _url = _url.Replace("{resourceGroupName}", System.Uri.EscapeDataString(resourceGroupName));
            _url = _url.Replace("{subscriptionId}", System.Uri.EscapeDataString(Client.SubscriptionId));
            List<string> _queryParameters = new List<string>();
            if (Client.ApiVersion != null)
            {
                _queryParameters.Add(string.Format("api-version={0}", System.Uri.EscapeDataString(Client.ApiVersion)));
            }
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("GET");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse<IPage<Account>>();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            // Deserialize Response
            if ((int)_statusCode == 200)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<Page<Account>>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

        /// <summary>
        /// Returns all the resources of a particular type belonging to a subscription.
        /// </summary>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="SerializationException">
        /// Thrown when unable to deserialize the response
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse<IPage<Account>>> ListWithHttpMessagesAsync(Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (Client.ApiVersion == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.ApiVersion");
            }
            if (Client.ApiVersion != null)
            {
                if (Client.ApiVersion.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.ApiVersion", 1);
                }
            }
            if (Client.SubscriptionId == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.SubscriptionId");
            }
            if (Client.SubscriptionId != null)
            {
                if (Client.SubscriptionId.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.SubscriptionId", 1);
                }
            }
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "List", tracingParameters);
            }
            // Construct URL
            var _baseUrl = Client.BaseUri.AbsoluteUri;
            var _url = new System.Uri(new System.Uri(_baseUrl + (_baseUrl.EndsWith("/") ? "" : "/")), "subscriptions/{subscriptionId}/providers/Microsoft.CognitiveServices/accounts").ToString();
            _url = _url.Replace("{subscriptionId}", System.Uri.EscapeDataString(Client.SubscriptionId));
            List<string> _queryParameters = new List<string>();
            if (Client.ApiVersion != null)
            {
                _queryParameters.Add(string.Format("api-version={0}", System.Uri.EscapeDataString(Client.ApiVersion)));
            }
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("GET");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse<IPage<Account>>();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            // Deserialize Response
            if ((int)_statusCode == 200)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<Page<Account>>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

        /// <summary>
        /// Lists the account keys for the specified Cognitive Services account.
        /// </summary>
        /// <param name='resourceGroupName'>
        /// The name of the resource group. The name is case insensitive.
        /// </param>
        /// <param name='accountName'>
        /// The name of Cognitive Services account.
        /// </param>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="SerializationException">
        /// Thrown when unable to deserialize the response
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse<ApiKeys>> ListKeysWithHttpMessagesAsync(string resourceGroupName, string accountName, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (resourceGroupName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "resourceGroupName");
            }
            if (resourceGroupName != null)
            {
                if (resourceGroupName.Length > 90)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "resourceGroupName", 90);
                }
                if (resourceGroupName.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "resourceGroupName", 1);
                }
            }
            if (accountName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "accountName");
            }
            if (accountName != null)
            {
                if (accountName.Length > 64)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "accountName", 64);
                }
                if (accountName.Length < 2)
                {
                    throw new ValidationException(ValidationRules.MinLength, "accountName", 2);
                }
                if (!System.Text.RegularExpressions.Regex.IsMatch(accountName, "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$"))
                {
                    throw new ValidationException(ValidationRules.Pattern, "accountName", "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$");
                }
            }
            if (Client.ApiVersion == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.ApiVersion");
            }
            if (Client.ApiVersion != null)
            {
                if (Client.ApiVersion.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.ApiVersion", 1);
                }
            }
            if (Client.SubscriptionId == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.SubscriptionId");
            }
            if (Client.SubscriptionId != null)
            {
                if (Client.SubscriptionId.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.SubscriptionId", 1);
                }
            }
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("resourceGroupName", resourceGroupName);
                tracingParameters.Add("accountName", accountName);
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "ListKeys", tracingParameters);
            }
            // Construct URL
            var _baseUrl = Client.BaseUri.AbsoluteUri;
            var _url = new System.Uri(new System.Uri(_baseUrl + (_baseUrl.EndsWith("/") ? "" : "/")), "subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts/{accountName}/listKeys").ToString();
            _url = _url.Replace("{resourceGroupName}", System.Uri.EscapeDataString(resourceGroupName));
            _url = _url.Replace("{accountName}", System.Uri.EscapeDataString(accountName));
            _url = _url.Replace("{subscriptionId}", System.Uri.EscapeDataString(Client.SubscriptionId));
            List<string> _queryParameters = new List<string>();
            if (Client.ApiVersion != null)
            {
                _queryParameters.Add(string.Format("api-version={0}", System.Uri.EscapeDataString(Client.ApiVersion)));
            }
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("POST");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse<ApiKeys>();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            // Deserialize Response
            if ((int)_statusCode == 200)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<ApiKeys>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

        /// <summary>
        /// Regenerates the specified account key for the specified Cognitive Services
        /// account.
        /// </summary>
        /// <param name='resourceGroupName'>
        /// The name of the resource group. The name is case insensitive.
        /// </param>
        /// <param name='accountName'>
        /// The name of Cognitive Services account.
        /// </param>
        /// <param name='keyName'>
        /// key name to generate (Key1|Key2). Possible values include: 'Key1', 'Key2'
        /// </param>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="SerializationException">
        /// Thrown when unable to deserialize the response
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse<ApiKeys>> RegenerateKeyWithHttpMessagesAsync(string resourceGroupName, string accountName, KeyName keyName, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (resourceGroupName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "resourceGroupName");
            }
            if (resourceGroupName != null)
            {
                if (resourceGroupName.Length > 90)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "resourceGroupName", 90);
                }
                if (resourceGroupName.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "resourceGroupName", 1);
                }
            }
            if (accountName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "accountName");
            }
            if (accountName != null)
            {
                if (accountName.Length > 64)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "accountName", 64);
                }
                if (accountName.Length < 2)
                {
                    throw new ValidationException(ValidationRules.MinLength, "accountName", 2);
                }
                if (!System.Text.RegularExpressions.Regex.IsMatch(accountName, "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$"))
                {
                    throw new ValidationException(ValidationRules.Pattern, "accountName", "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$");
                }
            }
            if (Client.ApiVersion == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.ApiVersion");
            }
            if (Client.ApiVersion != null)
            {
                if (Client.ApiVersion.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.ApiVersion", 1);
                }
            }
            if (Client.SubscriptionId == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.SubscriptionId");
            }
            if (Client.SubscriptionId != null)
            {
                if (Client.SubscriptionId.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.SubscriptionId", 1);
                }
            }
            RegenerateKeyParameters parameters = new RegenerateKeyParameters();
            parameters.KeyName = keyName;
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("resourceGroupName", resourceGroupName);
                tracingParameters.Add("accountName", accountName);
                tracingParameters.Add("parameters", parameters);
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "RegenerateKey", tracingParameters);
            }
            // Construct URL
            var _baseUrl = Client.BaseUri.AbsoluteUri;
            var _url = new System.Uri(new System.Uri(_baseUrl + (_baseUrl.EndsWith("/") ? "" : "/")), "subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts/{accountName}/regenerateKey").ToString();
            _url = _url.Replace("{resourceGroupName}", System.Uri.EscapeDataString(resourceGroupName));
            _url = _url.Replace("{accountName}", System.Uri.EscapeDataString(accountName));
            _url = _url.Replace("{subscriptionId}", System.Uri.EscapeDataString(Client.SubscriptionId));
            List<string> _queryParameters = new List<string>();
            if (Client.ApiVersion != null)
            {
                _queryParameters.Add(string.Format("api-version={0}", System.Uri.EscapeDataString(Client.ApiVersion)));
            }
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("POST");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            if(parameters != null)
            {
                _requestContent = Rest.Serialization.SafeJsonConvert.SerializeObject(parameters, Client.SerializationSettings);
                _httpRequest.Content = new StringContent(_requestContent, System.Text.Encoding.UTF8);
                _httpRequest.Content.Headers.ContentType =System.Net.Http.Headers.MediaTypeHeaderValue.Parse("application/json; charset=utf-8");
            }
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse<ApiKeys>();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            // Deserialize Response
            if ((int)_statusCode == 200)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<ApiKeys>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

        /// <summary>
        /// List available SKUs for the requested Cognitive Services account
        /// </summary>
        /// <param name='resourceGroupName'>
        /// The name of the resource group. The name is case insensitive.
        /// </param>
        /// <param name='accountName'>
        /// The name of Cognitive Services account.
        /// </param>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="SerializationException">
        /// Thrown when unable to deserialize the response
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse<AccountSkuListResult>> ListSkusWithHttpMessagesAsync(string resourceGroupName, string accountName, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (resourceGroupName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "resourceGroupName");
            }
            if (resourceGroupName != null)
            {
                if (resourceGroupName.Length > 90)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "resourceGroupName", 90);
                }
                if (resourceGroupName.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "resourceGroupName", 1);
                }
            }
            if (accountName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "accountName");
            }
            if (accountName != null)
            {
                if (accountName.Length > 64)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "accountName", 64);
                }
                if (accountName.Length < 2)
                {
                    throw new ValidationException(ValidationRules.MinLength, "accountName", 2);
                }
                if (!System.Text.RegularExpressions.Regex.IsMatch(accountName, "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$"))
                {
                    throw new ValidationException(ValidationRules.Pattern, "accountName", "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$");
                }
            }
            if (Client.ApiVersion == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.ApiVersion");
            }
            if (Client.ApiVersion != null)
            {
                if (Client.ApiVersion.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.ApiVersion", 1);
                }
            }
            if (Client.SubscriptionId == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.SubscriptionId");
            }
            if (Client.SubscriptionId != null)
            {
                if (Client.SubscriptionId.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.SubscriptionId", 1);
                }
            }
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("resourceGroupName", resourceGroupName);
                tracingParameters.Add("accountName", accountName);
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "ListSkus", tracingParameters);
            }
            // Construct URL
            var _baseUrl = Client.BaseUri.AbsoluteUri;
            var _url = new System.Uri(new System.Uri(_baseUrl + (_baseUrl.EndsWith("/") ? "" : "/")), "subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts/{accountName}/skus").ToString();
            _url = _url.Replace("{resourceGroupName}", System.Uri.EscapeDataString(resourceGroupName));
            _url = _url.Replace("{accountName}", System.Uri.EscapeDataString(accountName));
            _url = _url.Replace("{subscriptionId}", System.Uri.EscapeDataString(Client.SubscriptionId));
            List<string> _queryParameters = new List<string>();
            if (Client.ApiVersion != null)
            {
                _queryParameters.Add(string.Format("api-version={0}", System.Uri.EscapeDataString(Client.ApiVersion)));
            }
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("GET");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse<AccountSkuListResult>();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            // Deserialize Response
            if ((int)_statusCode == 200)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<AccountSkuListResult>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

        /// <summary>
        /// Get usages for the requested Cognitive Services account
        /// </summary>
        /// <param name='resourceGroupName'>
        /// The name of the resource group. The name is case insensitive.
        /// </param>
        /// <param name='accountName'>
        /// The name of Cognitive Services account.
        /// </param>
        /// <param name='filter'>
        /// An OData filter expression that describes a subset of usages to return. The
        /// supported parameter is name.value (name of the metric, can have an or of
        /// multiple names).
        /// </param>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="SerializationException">
        /// Thrown when unable to deserialize the response
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse<UsageListResult>> ListUsagesWithHttpMessagesAsync(string resourceGroupName, string accountName, string filter = default(string), Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (resourceGroupName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "resourceGroupName");
            }
            if (resourceGroupName != null)
            {
                if (resourceGroupName.Length > 90)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "resourceGroupName", 90);
                }
                if (resourceGroupName.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "resourceGroupName", 1);
                }
            }
            if (accountName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "accountName");
            }
            if (accountName != null)
            {
                if (accountName.Length > 64)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "accountName", 64);
                }
                if (accountName.Length < 2)
                {
                    throw new ValidationException(ValidationRules.MinLength, "accountName", 2);
                }
                if (!System.Text.RegularExpressions.Regex.IsMatch(accountName, "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$"))
                {
                    throw new ValidationException(ValidationRules.Pattern, "accountName", "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$");
                }
            }
            if (Client.ApiVersion == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.ApiVersion");
            }
            if (Client.ApiVersion != null)
            {
                if (Client.ApiVersion.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.ApiVersion", 1);
                }
            }
            if (Client.SubscriptionId == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.SubscriptionId");
            }
            if (Client.SubscriptionId != null)
            {
                if (Client.SubscriptionId.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.SubscriptionId", 1);
                }
            }
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("resourceGroupName", resourceGroupName);
                tracingParameters.Add("accountName", accountName);
                tracingParameters.Add("filter", filter);
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "ListUsages", tracingParameters);
            }
            // Construct URL
            var _baseUrl = Client.BaseUri.AbsoluteUri;
            var _url = new System.Uri(new System.Uri(_baseUrl + (_baseUrl.EndsWith("/") ? "" : "/")), "subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts/{accountName}/usages").ToString();
            _url = _url.Replace("{resourceGroupName}", System.Uri.EscapeDataString(resourceGroupName));
            _url = _url.Replace("{accountName}", System.Uri.EscapeDataString(accountName));
            _url = _url.Replace("{subscriptionId}", System.Uri.EscapeDataString(Client.SubscriptionId));
            List<string> _queryParameters = new List<string>();
            if (Client.ApiVersion != null)
            {
                _queryParameters.Add(string.Format("api-version={0}", System.Uri.EscapeDataString(Client.ApiVersion)));
            }
            if (filter != null)
            {
                _queryParameters.Add(string.Format("$filter={0}", System.Uri.EscapeDataString(filter)));
            }
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("GET");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse<UsageListResult>();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            // Deserialize Response
            if ((int)_statusCode == 200)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<UsageListResult>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

        /// <summary>
        /// List available Models for the requested Cognitive Services account
        /// </summary>
        /// <param name='resourceGroupName'>
        /// The name of the resource group. The name is case insensitive.
        /// </param>
        /// <param name='accountName'>
        /// The name of Cognitive Services account.
        /// </param>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="SerializationException">
        /// Thrown when unable to deserialize the response
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse<IPage<AccountModel>>> ListModelsWithHttpMessagesAsync(string resourceGroupName, string accountName, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (resourceGroupName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "resourceGroupName");
            }
            if (resourceGroupName != null)
            {
                if (resourceGroupName.Length > 90)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "resourceGroupName", 90);
                }
                if (resourceGroupName.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "resourceGroupName", 1);
                }
            }
            if (accountName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "accountName");
            }
            if (accountName != null)
            {
                if (accountName.Length > 64)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "accountName", 64);
                }
                if (accountName.Length < 2)
                {
                    throw new ValidationException(ValidationRules.MinLength, "accountName", 2);
                }
                if (!System.Text.RegularExpressions.Regex.IsMatch(accountName, "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$"))
                {
                    throw new ValidationException(ValidationRules.Pattern, "accountName", "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$");
                }
            }
            if (Client.ApiVersion == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.ApiVersion");
            }
            if (Client.ApiVersion != null)
            {
                if (Client.ApiVersion.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.ApiVersion", 1);
                }
            }
            if (Client.SubscriptionId == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.SubscriptionId");
            }
            if (Client.SubscriptionId != null)
            {
                if (Client.SubscriptionId.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.SubscriptionId", 1);
                }
            }
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("resourceGroupName", resourceGroupName);
                tracingParameters.Add("accountName", accountName);
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "ListModels", tracingParameters);
            }
            // Construct URL
            var _baseUrl = Client.BaseUri.AbsoluteUri;
            var _url = new System.Uri(new System.Uri(_baseUrl + (_baseUrl.EndsWith("/") ? "" : "/")), "subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts/{accountName}/models").ToString();
            _url = _url.Replace("{resourceGroupName}", System.Uri.EscapeDataString(resourceGroupName));
            _url = _url.Replace("{accountName}", System.Uri.EscapeDataString(accountName));
            _url = _url.Replace("{subscriptionId}", System.Uri.EscapeDataString(Client.SubscriptionId));
            List<string> _queryParameters = new List<string>();
            if (Client.ApiVersion != null)
            {
                _queryParameters.Add(string.Format("api-version={0}", System.Uri.EscapeDataString(Client.ApiVersion)));
            }
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("GET");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse<IPage<AccountModel>>();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            // Deserialize Response
            if ((int)_statusCode == 200)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<Page<AccountModel>>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

        /// <summary>
        /// Create Cognitive Services Account. Accounts is a resource group wide
        /// resource type. It holds the keys for developer to access intelligent APIs.
        /// It's also the resource type for billing.
        /// </summary>
        /// <param name='resourceGroupName'>
        /// The name of the resource group. The name is case insensitive.
        /// </param>
        /// <param name='accountName'>
        /// The name of Cognitive Services account.
        /// </param>
        /// <param name='account'>
        /// The parameters to provide for the created account.
        /// </param>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="SerializationException">
        /// Thrown when unable to deserialize the response
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse<Account>> BeginCreateWithHttpMessagesAsync(string resourceGroupName, string accountName, Account account, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (resourceGroupName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "resourceGroupName");
            }
            if (resourceGroupName != null)
            {
                if (resourceGroupName.Length > 90)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "resourceGroupName", 90);
                }
                if (resourceGroupName.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "resourceGroupName", 1);
                }
            }
            if (accountName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "accountName");
            }
            if (accountName != null)
            {
                if (accountName.Length > 64)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "accountName", 64);
                }
                if (accountName.Length < 2)
                {
                    throw new ValidationException(ValidationRules.MinLength, "accountName", 2);
                }
                if (!System.Text.RegularExpressions.Regex.IsMatch(accountName, "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$"))
                {
                    throw new ValidationException(ValidationRules.Pattern, "accountName", "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$");
                }
            }
            if (account == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "account");
            }
            if (account != null)
            {
                account.Validate();
            }
            if (Client.ApiVersion == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.ApiVersion");
            }
            if (Client.ApiVersion != null)
            {
                if (Client.ApiVersion.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.ApiVersion", 1);
                }
            }
            if (Client.SubscriptionId == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.SubscriptionId");
            }
            if (Client.SubscriptionId != null)
            {
                if (Client.SubscriptionId.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.SubscriptionId", 1);
                }
            }
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("resourceGroupName", resourceGroupName);
                tracingParameters.Add("accountName", accountName);
                tracingParameters.Add("account", account);
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "BeginCreate", tracingParameters);
            }
            // Construct URL
            var _baseUrl = Client.BaseUri.AbsoluteUri;
            var _url = new System.Uri(new System.Uri(_baseUrl + (_baseUrl.EndsWith("/") ? "" : "/")), "subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts/{accountName}").ToString();
            _url = _url.Replace("{resourceGroupName}", System.Uri.EscapeDataString(resourceGroupName));
            _url = _url.Replace("{accountName}", System.Uri.EscapeDataString(accountName));
            _url = _url.Replace("{subscriptionId}", System.Uri.EscapeDataString(Client.SubscriptionId));
            List<string> _queryParameters = new List<string>();
            if (Client.ApiVersion != null)
            {
                _queryParameters.Add(string.Format("api-version={0}", System.Uri.EscapeDataString(Client.ApiVersion)));
            }
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("PUT");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            if(account != null)
            {
                _requestContent = Rest.Serialization.SafeJsonConvert.SerializeObject(account, Client.SerializationSettings);
                _httpRequest.Content = new StringContent(_requestContent, System.Text.Encoding.UTF8);
                _httpRequest.Content.Headers.ContentType =System.Net.Http.Headers.MediaTypeHeaderValue.Parse("application/json; charset=utf-8");
            }
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200 && (int)_statusCode != 201 && (int)_statusCode != 202)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse<Account>();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            // Deserialize Response
            if ((int)_statusCode == 200)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<Account>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            // Deserialize Response
            if ((int)_statusCode == 201)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<Account>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            // Deserialize Response
            if ((int)_statusCode == 202)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<Account>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

        /// <summary>
        /// Updates a Cognitive Services account
        /// </summary>
        /// <param name='resourceGroupName'>
        /// The name of the resource group. The name is case insensitive.
        /// </param>
        /// <param name='accountName'>
        /// The name of Cognitive Services account.
        /// </param>
        /// <param name='account'>
        /// The parameters to provide for the created account.
        /// </param>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="SerializationException">
        /// Thrown when unable to deserialize the response
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse<Account>> BeginUpdateWithHttpMessagesAsync(string resourceGroupName, string accountName, Account account, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (resourceGroupName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "resourceGroupName");
            }
            if (resourceGroupName != null)
            {
                if (resourceGroupName.Length > 90)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "resourceGroupName", 90);
                }
                if (resourceGroupName.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "resourceGroupName", 1);
                }
            }
            if (accountName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "accountName");
            }
            if (accountName != null)
            {
                if (accountName.Length > 64)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "accountName", 64);
                }
                if (accountName.Length < 2)
                {
                    throw new ValidationException(ValidationRules.MinLength, "accountName", 2);
                }
                if (!System.Text.RegularExpressions.Regex.IsMatch(accountName, "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$"))
                {
                    throw new ValidationException(ValidationRules.Pattern, "accountName", "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$");
                }
            }
            if (account == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "account");
            }
            if (Client.ApiVersion == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.ApiVersion");
            }
            if (Client.ApiVersion != null)
            {
                if (Client.ApiVersion.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.ApiVersion", 1);
                }
            }
            if (Client.SubscriptionId == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.SubscriptionId");
            }
            if (Client.SubscriptionId != null)
            {
                if (Client.SubscriptionId.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.SubscriptionId", 1);
                }
            }
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("resourceGroupName", resourceGroupName);
                tracingParameters.Add("accountName", accountName);
                tracingParameters.Add("account", account);
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "BeginUpdate", tracingParameters);
            }
            // Construct URL
            var _baseUrl = Client.BaseUri.AbsoluteUri;
            var _url = new System.Uri(new System.Uri(_baseUrl + (_baseUrl.EndsWith("/") ? "" : "/")), "subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts/{accountName}").ToString();
            _url = _url.Replace("{resourceGroupName}", System.Uri.EscapeDataString(resourceGroupName));
            _url = _url.Replace("{accountName}", System.Uri.EscapeDataString(accountName));
            _url = _url.Replace("{subscriptionId}", System.Uri.EscapeDataString(Client.SubscriptionId));
            List<string> _queryParameters = new List<string>();
            if (Client.ApiVersion != null)
            {
                _queryParameters.Add(string.Format("api-version={0}", System.Uri.EscapeDataString(Client.ApiVersion)));
            }
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("PATCH");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            if(account != null)
            {
                _requestContent = Rest.Serialization.SafeJsonConvert.SerializeObject(account, Client.SerializationSettings);
                _httpRequest.Content = new StringContent(_requestContent, System.Text.Encoding.UTF8);
                _httpRequest.Content.Headers.ContentType =System.Net.Http.Headers.MediaTypeHeaderValue.Parse("application/json; charset=utf-8");
            }
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200 && (int)_statusCode != 202)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse<Account>();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            // Deserialize Response
            if ((int)_statusCode == 200)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<Account>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            // Deserialize Response
            if ((int)_statusCode == 202)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<Account>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

        /// <summary>
        /// Deletes a Cognitive Services account from the resource group.
        /// </summary>
        /// <param name='resourceGroupName'>
        /// The name of the resource group. The name is case insensitive.
        /// </param>
        /// <param name='accountName'>
        /// The name of Cognitive Services account.
        /// </param>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse> BeginDeleteWithHttpMessagesAsync(string resourceGroupName, string accountName, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (resourceGroupName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "resourceGroupName");
            }
            if (resourceGroupName != null)
            {
                if (resourceGroupName.Length > 90)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "resourceGroupName", 90);
                }
                if (resourceGroupName.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "resourceGroupName", 1);
                }
            }
            if (accountName == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "accountName");
            }
            if (accountName != null)
            {
                if (accountName.Length > 64)
                {
                    throw new ValidationException(ValidationRules.MaxLength, "accountName", 64);
                }
                if (accountName.Length < 2)
                {
                    throw new ValidationException(ValidationRules.MinLength, "accountName", 2);
                }
                if (!System.Text.RegularExpressions.Regex.IsMatch(accountName, "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$"))
                {
                    throw new ValidationException(ValidationRules.Pattern, "accountName", "^[a-zA-Z0-9][a-zA-Z0-9_.-]*$");
                }
            }
            if (Client.ApiVersion == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.ApiVersion");
            }
            if (Client.ApiVersion != null)
            {
                if (Client.ApiVersion.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.ApiVersion", 1);
                }
            }
            if (Client.SubscriptionId == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "this.Client.SubscriptionId");
            }
            if (Client.SubscriptionId != null)
            {
                if (Client.SubscriptionId.Length < 1)
                {
                    throw new ValidationException(ValidationRules.MinLength, "Client.SubscriptionId", 1);
                }
            }
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("resourceGroupName", resourceGroupName);
                tracingParameters.Add("accountName", accountName);
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "BeginDelete", tracingParameters);
            }
            // Construct URL
            var _baseUrl = Client.BaseUri.AbsoluteUri;
            var _url = new System.Uri(new System.Uri(_baseUrl + (_baseUrl.EndsWith("/") ? "" : "/")), "subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.CognitiveServices/accounts/{accountName}").ToString();
            _url = _url.Replace("{resourceGroupName}", System.Uri.EscapeDataString(resourceGroupName));
            _url = _url.Replace("{accountName}", System.Uri.EscapeDataString(accountName));
            _url = _url.Replace("{subscriptionId}", System.Uri.EscapeDataString(Client.SubscriptionId));
            List<string> _queryParameters = new List<string>();
            if (Client.ApiVersion != null)
            {
                _queryParameters.Add(string.Format("api-version={0}", System.Uri.EscapeDataString(Client.ApiVersion)));
            }
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("DELETE");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200 && (int)_statusCode != 202 && (int)_statusCode != 204)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

        /// <summary>
        /// Returns all the resources of a particular type belonging to a resource
        /// group
        /// </summary>
        /// <param name='nextPageLink'>
        /// The NextLink from the previous successful call to List operation.
        /// </param>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="SerializationException">
        /// Thrown when unable to deserialize the response
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse<IPage<Account>>> ListByResourceGroupNextWithHttpMessagesAsync(string nextPageLink, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (nextPageLink == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "nextPageLink");
            }
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("nextPageLink", nextPageLink);
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "ListByResourceGroupNext", tracingParameters);
            }
            // Construct URL
            string _url = "{nextLink}";
            _url = _url.Replace("{nextLink}", nextPageLink);
            List<string> _queryParameters = new List<string>();
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("GET");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse<IPage<Account>>();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            // Deserialize Response
            if ((int)_statusCode == 200)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<Page<Account>>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

        /// <summary>
        /// Returns all the resources of a particular type belonging to a subscription.
        /// </summary>
        /// <param name='nextPageLink'>
        /// The NextLink from the previous successful call to List operation.
        /// </param>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="SerializationException">
        /// Thrown when unable to deserialize the response
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse<IPage<Account>>> ListNextWithHttpMessagesAsync(string nextPageLink, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (nextPageLink == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "nextPageLink");
            }
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("nextPageLink", nextPageLink);
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "ListNext", tracingParameters);
            }
            // Construct URL
            string _url = "{nextLink}";
            _url = _url.Replace("{nextLink}", nextPageLink);
            List<string> _queryParameters = new List<string>();
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("GET");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse<IPage<Account>>();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            // Deserialize Response
            if ((int)_statusCode == 200)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<Page<Account>>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

        /// <summary>
        /// List available Models for the requested Cognitive Services account
        /// </summary>
        /// <param name='nextPageLink'>
        /// The NextLink from the previous successful call to List operation.
        /// </param>
        /// <param name='customHeaders'>
        /// Headers that will be added to request.
        /// </param>
        /// <param name='cancellationToken'>
        /// The cancellation token.
        /// </param>
        /// <exception cref="ErrorResponseException">
        /// Thrown when the operation returned an invalid status code
        /// </exception>
        /// <exception cref="SerializationException">
        /// Thrown when unable to deserialize the response
        /// </exception>
        /// <exception cref="ValidationException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown when a required parameter is null
        /// </exception>
        /// <return>
        /// A response object containing the response body and response headers.
        /// </return>
        public async Task<AzureOperationResponse<IPage<AccountModel>>> ListModelsNextWithHttpMessagesAsync(string nextPageLink, Dictionary<string, List<string>> customHeaders = null, CancellationToken cancellationToken = default(CancellationToken))
        {
            if (nextPageLink == null)
            {
                throw new ValidationException(ValidationRules.CannotBeNull, "nextPageLink");
            }
            // Tracing
            bool _shouldTrace = ServiceClientTracing.IsEnabled;
            string _invocationId = null;
            if (_shouldTrace)
            {
                _invocationId = ServiceClientTracing.NextInvocationId.ToString();
                Dictionary<string, object> tracingParameters = new Dictionary<string, object>();
                tracingParameters.Add("nextPageLink", nextPageLink);
                tracingParameters.Add("cancellationToken", cancellationToken);
                ServiceClientTracing.Enter(_invocationId, this, "ListModelsNext", tracingParameters);
            }
            // Construct URL
            string _url = "{nextLink}";
            _url = _url.Replace("{nextLink}", nextPageLink);
            List<string> _queryParameters = new List<string>();
            if (_queryParameters.Count > 0)
            {
                _url += (_url.Contains("?") ? "&" : "?") + string.Join("&", _queryParameters);
            }
            // Create HTTP transport objects
            var _httpRequest = new HttpRequestMessage();
            HttpResponseMessage _httpResponse = null;
            _httpRequest.Method = new HttpMethod("GET");
            _httpRequest.RequestUri = new System.Uri(_url);
            // Set Headers
            if (Client.GenerateClientRequestId != null && Client.GenerateClientRequestId.Value)
            {
                _httpRequest.Headers.TryAddWithoutValidation("x-ms-client-request-id", System.Guid.NewGuid().ToString());
            }
            if (Client.AcceptLanguage != null)
            {
                if (_httpRequest.Headers.Contains("accept-language"))
                {
                    _httpRequest.Headers.Remove("accept-language");
                }
                _httpRequest.Headers.TryAddWithoutValidation("accept-language", Client.AcceptLanguage);
            }

            if (customHeaders != null)
            {
                foreach(var _header in customHeaders)
                {
                    if (_httpRequest.Headers.Contains(_header.Key))
                    {
                        _httpRequest.Headers.Remove(_header.Key);
                    }
                    _httpRequest.Headers.TryAddWithoutValidation(_header.Key, _header.Value);
                }
            }

            // Serialize Request
            string _requestContent = null;
            // Set Credentials
            if (Client.Credentials != null)
            {
                cancellationToken.ThrowIfCancellationRequested();
                await Client.Credentials.ProcessHttpRequestAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            }
            // Send Request
            if (_shouldTrace)
            {
                ServiceClientTracing.SendRequest(_invocationId, _httpRequest);
            }
            cancellationToken.ThrowIfCancellationRequested();
            _httpResponse = await Client.HttpClient.SendAsync(_httpRequest, cancellationToken).ConfigureAwait(false);
            if (_shouldTrace)
            {
                ServiceClientTracing.ReceiveResponse(_invocationId, _httpResponse);
            }
            HttpStatusCode _statusCode = _httpResponse.StatusCode;
            cancellationToken.ThrowIfCancellationRequested();
            string _responseContent = null;
            if ((int)_statusCode != 200)
            {
                var ex = new ErrorResponseException(string.Format("Operation returned an invalid status code '{0}'", _statusCode));
                try
                {
                    _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                    ErrorResponse _errorBody =  Rest.Serialization.SafeJsonConvert.DeserializeObject<ErrorResponse>(_responseContent, Client.DeserializationSettings);
                    if (_errorBody != null)
                    {
                        ex.Body = _errorBody;
                    }
                }
                catch (JsonException)
                {
                    // Ignore the exception
                }
                ex.Request = new HttpRequestMessageWrapper(_httpRequest, _requestContent);
                ex.Response = new HttpResponseMessageWrapper(_httpResponse, _responseContent);
                if (_shouldTrace)
                {
                    ServiceClientTracing.Error(_invocationId, ex);
                }
                _httpRequest.Dispose();
                if (_httpResponse != null)
                {
                    _httpResponse.Dispose();
                }
                throw ex;
            }
            // Create Result
            var _result = new AzureOperationResponse<IPage<AccountModel>>();
            _result.Request = _httpRequest;
            _result.Response = _httpResponse;
            if (_httpResponse.Headers.Contains("x-ms-request-id"))
            {
                _result.RequestId = _httpResponse.Headers.GetValues("x-ms-request-id").FirstOrDefault();
            }
            // Deserialize Response
            if ((int)_statusCode == 200)
            {
                _responseContent = await _httpResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
                try
                {
                    _result.Body = Rest.Serialization.SafeJsonConvert.DeserializeObject<Page<AccountModel>>(_responseContent, Client.DeserializationSettings);
                }
                catch (JsonException ex)
                {
                    _httpRequest.Dispose();
                    if (_httpResponse != null)
                    {
                        _httpResponse.Dispose();
                    }
                    throw new SerializationException("Unable to deserialize the response.", _responseContent, ex);
                }
            }
            if (_shouldTrace)
            {
                ServiceClientTracing.Exit(_invocationId, _result);
            }
            return _result;
        }

    }
}