public Builder clear() {
        super.clear();
        userId_ = "";

        userRealName_ = "";

        userRole_ = 0;

        userImg_ = "";

        isOnline_ = false;

        return this;
      }
Protobuf type {@code org.anychat.protobuf.ws.ChatUserData}
AnyChatServer/src/main/java/org/anychat/protobuf/ws/LoginChatProto.java