code: @Override
      public DescribeReservedCacheNodesOfferingsResult describeReservedCacheNodesOfferings(DescribeReservedCacheNodesOfferingsRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeReservedCacheNodesOfferings(request);
      }
docs: <p>
  Lists available reserved cache node offerings.
  </p>
  
  @param describeReservedCacheNodesOfferingsRequest
  Represents the input of a <code>DescribeReservedCacheNodesOfferings</code> operation.
  @return Result of the DescribeReservedCacheNodesOfferings operation returned by the service.
  @throws ReservedCacheNodesOfferingNotFoundException
  The requested cache node offering does not exist.
  @throws InvalidParameterValueException
  The value for a parameter is invalid.
  @throws InvalidParameterCombinationException
  Two or more incompatible parameters were specified.
  @sample AmazonElastiCache.DescribeReservedCacheNodesOfferings
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/elasticache-2015-02-02/DescribeReservedCacheNodesOfferings"
  target="_top">AWS API Documentation</a>