code: func jsonParamsToArgsWS(rpcFunc *RPCFunc, params json.RawMessage, wsCtx types.WSRPCContext) ([]reflect.Value, error) {
  	values, err := jsonParamsToArgs(rpcFunc, params, 1)
  	if err != nil {
  		return nil, err
  	}
  	return append([]reflect.Value{reflect.ValueOf(wsCtx)}, values...), nil
  }
docs: // Same as above, but with the first param the websocket connection