Function getOrCreateData

src/ArduinoJson/Object/MemberProxy.hpp:64–70

  }

  VariantData* getOrCreateData() const {
    auto data = VariantAttorney::getOrCreateData(upstream_);
    if (!data)
      return nullptr;
    return data->getOrAddMember(key_,
                                VariantAttorney::getResourceManager(upstream_));
  }

 private:
  TUpstream upstream_;