def get_function_configuration(FunctionName=None, Qualifier=None):
    """
    Returns the configuration information of the Lambda function. This the same information you provided as parameters when uploading the function by using  CreateFunction .
    If you are using the versioning feature, you can retrieve this information for a specific function version by using the optional Qualifier parameter and specifying the function version or alias that points to it. If you don't provide it, the API returns information about the $LATEST version of the function. For more information about versioning, see AWS Lambda Function Versioning and Aliases .
    This operation requires permission for the lambda:GetFunctionConfiguration operation.
    See also: AWS API Documentation
    
    Examples
    This operation retrieves a Lambda function's event source mapping
    Expected Output:
    
    :example: response = client.get_function_configuration(
        FunctionName='string',
        Qualifier='string'
    )
    
    
    :type FunctionName: string
    :param FunctionName: [REQUIRED]
            The name of the Lambda function for which you want to retrieve the configuration information.
            You can specify a function name (for example, Thumbnail ) or you can specify Amazon Resource Name (ARN) of the function (for example, arn:aws:lambda:us-west-2:account-id:function:ThumbNail ). AWS Lambda also allows you to specify a partial ARN (for example, account-id:Thumbnail ). Note that the length constraint applies only to the ARN. If you specify only the function name, it is limited to 64 characters in length.
            

    :type Qualifier: string
    :param Qualifier: Using this optional parameter you can specify a function version or an alias name. If you specify function version, the API uses qualified function ARN and returns information about the specific function version. If you specify an alias name, the API uses the alias ARN and returns information about the function version to which the alias points.
            If you don't specify this parameter, the API uses unqualified function ARN, and returns information about the $LATEST function version.
            

    :rtype: dict
    :return: {
        'FunctionName': 'string',
        'FunctionArn': 'string',
        'Runtime': 'nodejs'|'nodejs4.3'|'nodejs6.10'|'java8'|'python2.7'|'python3.6'|'dotnetcore1.0'|'nodejs4.3-edge',
        'Role': 'string',
        'Handler': 'string',
        'CodeSize': 123,
        'Description': 'string',
        'Timeout': 123,
        'MemorySize': 123,
        'LastModified': 'string',
        'CodeSha256': 'string',
        'Version': 'string',
        'VpcConfig': {
            'SubnetIds': [
                'string',
            ],
            'SecurityGroupIds': [
                'string',
            ],
            'VpcId': 'string'
        },
        'DeadLetterConfig': {
            'TargetArn': 'string'
        },
        'Environment': {
            'Variables': {
                'string': 'string'
            },
            'Error': {
                'ErrorCode': 'string',
                'Message': 'string'
            }
        },
        'KMSKeyArn': 'string',
        'TracingConfig': {
            'Mode': 'Active'|'PassThrough'
        }
    }
    
    
    :returns: 
    (string) --
    
    """
    pass
