Method request

libs/cppdap/src/session.cpp:159–164

    }

    std::pair<const dap::TypeInfo*, GenericRequestHandler> request(
        const std::string& name) {
      std::unique_lock<std::mutex> lock(requestMutex);
      auto it = requestMap.find(name);
      return (it != requestMap.end()) ? it->second : decltype(it->second){};
    }

    void put(const dap::TypeInfo* typeinfo,
             const GenericRequestHandler& handler) {