code: @Override
      public DescribeMaintenanceStartTimeResult describeMaintenanceStartTime(DescribeMaintenanceStartTimeRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeMaintenanceStartTime(request);
      }
docs: <p>
  Returns your gateway's weekly maintenance start time including the day and time of the week. Note that values are
  in terms of the gateway's time zone.
  </p>
  
  @param describeMaintenanceStartTimeRequest
  A JSON object containing the of the gateway.
  @return Result of the DescribeMaintenanceStartTime operation returned by the service.
  @throws InvalidGatewayRequestException
  An exception occurred because an invalid gateway request was issued to the service. For more information,
  see the error and message fields.
  @throws InternalServerErrorException
  An internal server error has occurred during the request. For more information, see the error and message
  fields.
  @sample AWSStorageGateway.DescribeMaintenanceStartTime
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/storagegateway-2013-06-30/DescribeMaintenanceStartTime"
  target="_top">AWS API Documentation</a>