kernel::actor::ActorImpl* get_impl() const { return pimpl_; }
/** Retrieve the property value (or nullptr if not set) */
- std::unordered_map<std::string, std::string>*
+ const std::unordered_map<std::string, std::string>*
get_properties() const; // FIXME: do not export the map, but only the keys or something
const char* get_property(const std::string& key) const;
void set_property(const std::string& key, const std::string& value);