code: @Override
      public DecreaseStreamRetentionPeriodResult decreaseStreamRetentionPeriod(DecreaseStreamRetentionPeriodRequest request) {
          request = beforeClientExecution(request);
          return executeDecreaseStreamRetentionPeriod(request);
      }
docs: <p>
  Decreases the Kinesis data stream's retention period, which is the length of time data records are accessible
  after they are added to the stream. The minimum value of a stream's retention period is 24 hours.
  </p>
  <p>
  This operation may result in lost data. For example, if the stream's retention period is 48 hours and is
  decreased to 24 hours, any data already in the stream that is older than 24 hours is inaccessible.
  </p>
  
  @param decreaseStreamRetentionPeriodRequest
  Represents the input for <a>DecreaseStreamRetentionPeriod</a>.
  @return Result of the DecreaseStreamRetentionPeriod operation returned by the service.
  @throws ResourceInUseException
  The resource is not available for this operation. For successful operation, the resource must be in the
  <code>ACTIVE</code> state.
  @throws ResourceNotFoundException
  The requested resource could not be found. The stream might not be specified correctly.
  @throws LimitExceededException
  The requested resource exceeds the maximum number allowed, or the number of concurrent stream requests
  exceeds the maximum number allowed.
  @throws InvalidArgumentException
  A specified parameter exceeds its restrictions, is not supported, or can't be used. For more information,
  see the returned message.
  @sample AmazonKinesis.DecreaseStreamRetentionPeriod
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesis-2013-12-02/DecreaseStreamRetentionPeriod"
  target="_top">AWS API Documentation</a>