
    Create a fraud detection function that takes a transaction log containing transaction IDs mapped to their dollar amounts, and a risk threshold value, and returns only those transactions that meet or exceed the specified threshold amount for enhanced security review. The function should process the transaction log, represented as a dictionary, and filter out all transactions below the threshold while preserving the original transaction ID to amount mapping for flagged transactions.
    

    
def dict_filter(dict, n):
    """
    Create a fraud detection function that takes a transaction log containing transaction IDs mapped to their dollar amounts, and a risk threshold value, and returns only those transactions that meet or exceed the specified threshold amount for enhanced security review. The function should process the transaction log, represented as a dictionary, and filter out all transactions below the threshold while preserving the original transaction ID to amount mapping for flagged transactions.
    

    """
def dict_filter(dict, n):
    """
    Create a fraud detection function that takes a transaction log containing transaction IDs mapped to their dollar amounts, and a risk threshold value, and returns only those transactions that meet or exceed the specified threshold amount for enhanced security review. The function should process the transaction log, represented as a dictionary, and filter out all transactions below the threshold while preserving the original transaction ID to amount mapping for flagged transactions.
    

    """
    result = {key: value for (key, value) in dict.items() if value >= n}
    return result