isJsonRpcResponse function
Implementation
bool isJsonRpcResponse(dynamic payload) {
  return isJsonRpcPayload(payload) &&
      (isJsonRpcResult(payload) || isJsonRpcError(payload));
}bool isJsonRpcResponse(dynamic payload) {
  return isJsonRpcPayload(payload) &&
      (isJsonRpcResult(payload) || isJsonRpcError(payload));
}