text: public virtual ModifyTransitGatewayVpcAttachmentResponse ModifyTransitGatewayVpcAttachment(ModifyTransitGatewayVpcAttachmentRequest request){var options = new InvokeOptions();options.RequestMarshaller = ModifyTransitGatewayVpcAttachmentRequestMarshaller.Instance;options.ResponseUnmarshaller = ModifyTransitGatewayVpcAttachmentResponseUnmarshaller.Instance;return Invoke<ModifyTransitGatewayVpcAttachmentResponse>(request, options);}