code: @Override
      public GetGatewayResponsesResult getGatewayResponses(GetGatewayResponsesRequest request) {
          request = beforeClientExecution(request);
          return executeGetGatewayResponses(request);
      }
docs: <p>
  Gets the <a>GatewayResponses</a> collection on the given <a>RestApi</a>. If an API developer has not added any
  definitions for gateway responses, the result will be the API Gateway-generated default <a>GatewayResponses</a>
  collection for the supported response types.
  </p>
  
  @param getGatewayResponsesRequest
  Gets the <a>GatewayResponses</a> collection on the given <a>RestApi</a>. If an API developer has not added
  any definitions for gateway responses, the result will be the API Gateway-generated default
  <a>GatewayResponses</a> collection for the supported response types.
  @return Result of the GetGatewayResponses operation returned by the service.
  @throws BadRequestException
  The submitted request is not valid, for example, the input is incomplete or incorrect. See the
  accompanying error message for details.
  @throws UnauthorizedException
  The request is denied because the caller has insufficient permissions.
  @throws NotFoundException
  The requested resource is not found. Make sure that the request URI is correct.
  @throws TooManyRequestsException
  The request has reached its throttling limit. Retry after the specified time period.
  @sample AmazonApiGateway.GetGatewayResponses