Microsoft.R.Host.Client.RHost.CreateRequestMessage C# (CSharp) Method

        private Message CreateRequestMessage(string name, JArray json, byte[] blob = null) {
            Debug.Assert(name.StartsWithOrdinal("?"));
            return CreateMessage(name, ulong.MaxValue, json, blob);
        }

            public static async Task <CreateBlobRequest> CreateAsync(RHost host, CancellationToken cancellationToken)
            {
                var message = host.CreateRequestMessage("?CreateBlob", new JArray());
                var request = new CreateBlobRequest(host, message, cancellationToken);

                await host.SendAsync(message, cancellationToken);

                return(request);
            }