Dynamic codegen of individual delegates to invoke RPC from client

Contract:

public delegate Task DataChange(int v);

server:

do some thing.......
var dataChange=ServerJsonRpc.Attach<DataChange>( ClientInfo); //clientinfo is: client's stream /client's session(like ip and port) and so on
dataChange(newValue);
.......

client:

ClientJsonRpc.AddDelegate<DataChange>((v)=>{Console.WriteLine(...............)});

expect：When the server calls the DataChange delegate, the client will execute: Console.WriteLine(..........);

Start by reviewing the existing ServerJsonRpc.Attach and ClientJsonRpc.AddDelegate entry points and the DataChange delegate contract described in the issue. Determine how dynamic delegate generation should connect a server-side invocation to the registered client callback, then verify that invoking DataChange on the server causes the client delegate to execute with the value passed.