code: @Override
      public GetTransitGatewayAttachmentPropagationsResult getTransitGatewayAttachmentPropagations(GetTransitGatewayAttachmentPropagationsRequest request) {
          request = beforeClientExecution(request);
          return executeGetTransitGatewayAttachmentPropagations(request);
      }
docs: <p>
  Lists the route tables to which the specified resource attachment propagates routes.
  </p>
  
  @param getTransitGatewayAttachmentPropagationsRequest
  @return Result of the GetTransitGatewayAttachmentPropagations operation returned by the service.
  @sample AmazonEC2.GetTransitGatewayAttachmentPropagations
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/GetTransitGatewayAttachmentPropagations"
  target="_top">AWS API Documentation</a>