#cfn-response module This module contains functions that respond on behalf of custom resources you create using AWS CloudFormation. The module includes a send method, which sends a response object to a custom resource by way of a ResponseURL, which is an Amazon S3 pre-signed URL. Any Lambda function using this module stops running after executing the module's send method. For more information, read the AWS documentation [here][1] [1]: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-lambda-function-code.html#cfn-lambda-function-code-cfnresponsemodule