code: @Override
      public DescribeReservationResult describeReservation(DescribeReservationRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeReservation(request);
      }
docs: Get details for a reservation.
  
  @param describeReservationRequest
  Placeholder documentation for DescribeReservationRequest
  @return Result of the DescribeReservation operation returned by the service.
  @throws BadRequestException
  This request was invalid
  @throws InternalServerErrorException
  Internal service error
  @throws ForbiddenException
  You do not have permission to describe reservation
  @throws BadGatewayException
  Bad gateway error
  @throws NotFoundException
  Reservation you're attempting to describe does not exist
  @throws GatewayTimeoutException
  Gateway timeout error
  @throws TooManyRequestsException
  Request limit exceeded on describe reservation request
  @sample AWSMediaLive.DescribeReservation
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/medialive-2017-10-14/DescribeReservation" target="_top">AWS
  API Documentation</a>