code: function succeedLambdaCallback(callback, response, event, context) {
    return executePreSuccessCallback(response, event, context)
      .then(() => callback(null, response))
      .catch(err => {
        console.error(`Unexpected failure after executePreSuccessCallback`, err);
        return callback(null, response);
      });
  }
docs: Succeeds the given callback of an AWS Lambda, by invoking the given callback with the given response.
  @param {Function} callback - the callback function passed as the last argument to your Lambda function on invocation.
  @param {Object} response - a normal or Lambda Proxy integration response to be returned
  @param {AWSEvent} event - the AWS event passed to your handler
  @param {StandardHandlerContext} context - the context to use