code: @Override
      public PurchaseReservedElasticsearchInstanceOfferingResult purchaseReservedElasticsearchInstanceOffering(
              PurchaseReservedElasticsearchInstanceOfferingRequest request) {
          request = beforeClientExecution(request);
          return executePurchaseReservedElasticsearchInstanceOffering(request);
      }
docs: <p>
  Allows you to purchase reserved Elasticsearch instances.
  </p>
  
  @param purchaseReservedElasticsearchInstanceOfferingRequest
  Container for parameters to <code>PurchaseReservedElasticsearchInstanceOffering</code>
  @return Result of the PurchaseReservedElasticsearchInstanceOffering operation returned by the service.
  @throws ResourceNotFoundException
  An exception for accessing or deleting a resource that does not exist. Gives http status code of 400.
  @throws ResourceAlreadyExistsException
  An exception for creating a resource that already exists. Gives http status code of 400.
  @throws LimitExceededException
  An exception for trying to create more than allowed resources or sub-resources. Gives http status code of
  409.
  @throws DisabledOperationException
  An error occured because the client wanted to access a not supported operation. Gives http status code of
  409.
  @throws ValidationException
  An exception for missing / invalid input fields. Gives http status code of 400.
  @throws InternalException
  The request processing has failed because of an unknown error, exception or failure (the failure is
  internal to the service) . Gives http status code of 500.
  @sample AWSElasticsearch.PurchaseReservedElasticsearchInstanceOffering