public override void AddMethod <TRequest, TResponse>(Method <TRequest, TResponse> method, DuplexStreamingServerMethod <TRequest, TResponse> handler)
{
var callHandler = _serverCallHandlerFactory.CreateDuplexStreaming(method, _serviceInvokerFactory.CreateDuplexStreamingInvoker(method));
EndpointConventionBuilders.Add(_builder.MapPost(method.FullName, callHandler.HandleCallAsync));
}
