public virtual RegisterTransitGatewayMulticastGroupMembersResponse RegisterTransitGatewayMulticastGroupMembers(RegisterTransitGatewayMulticastGroupMembersRequest request){var options = new InvokeOptions();options.RequestMarshaller = RegisterTransitGatewayMulticastGroupMembersRequestMarshaller.Instance;options.ResponseUnmarshaller = RegisterTransitGatewayMulticastGroupMembersResponseUnmarshaller.Instance;return Invoke<RegisterTransitGatewayMulticastGroupMembersResponse>(request, options);}