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

        if (chatUserBuilder_ == null) {
          chatUser_ = null;
        } else {
          chatUser_ = null;
          chatUserBuilder_ = null;
        }
        return this;
      }
Protobuf type {@code org.anychat.protobuf.ws.ChatUserOnlineS}
AnyChatServer/src/main/java/org/anychat/protobuf/ws/LoginChatProto.java