@ -56,7 +56,7 @@ class CheckpointNotifyOpMaker : public framework::OpProtoAndCheckerMaker {
void Make() {
AddAttr<std::vector<std::string>>(
"epmap",
"(string vector, default 127.0.0.1:6164)"
"Server endpoints in the order of input variables for mapping")
.SetDefault({"127.0.0.1:6164"});
AddAttr<std::string>(