text: public virtual GetTransitGatewayAttachmentPropagationsResponse GetTransitGatewayAttachmentPropagations(GetTransitGatewayAttachmentPropagationsRequest request){var options = new InvokeOptions();options.RequestMarshaller = GetTransitGatewayAttachmentPropagationsRequestMarshaller.Instance;options.ResponseUnmarshaller = GetTransitGatewayAttachmentPropagationsResponseUnmarshaller.Instance;return Invoke<GetTransitGatewayAttachmentPropagationsResponse>(request, options);}