title: boto3 lambda script to shutdown RDS not working
body: <p>I'm just starting out with boto3 and lambda and was trying to run the below function via Pycharm.</p>
  <pre><code>import boto3
  
  client = boto3.client('rds')
  
  response = client.stop_db_instance(
      DBInstanceIdentifier='dummy-mysql-rds'
  )
  </code></pre>
  <p>But i receive the below error:</p>
  <p>botocore.errorfactory.DBInstanceNotFoundFault: An error occurred (DBInstanceNotFound) when calling the StopDBInstance operation: DBInstance dummy-mysql-rds not found.</p>
  <p>Do you know what may be causing this?</p>
  <p>For the record, I have the AWS toolkit installed for Pycharm and can run simple functions to list and describe ec2 instances and my AWS profile has admin access.</p>