Method setError

pj_datastore/src/plugin_data_host.cpp:344–346

  tsl::robin_map<TopicFieldIdKey, PrimitiveType, TopicFieldIdKeyHash> field_types;

  void setError(std::string message) {
    last_error = std::move(message);
  }

  [[nodiscard]] const char* lastError() const {
    return last_error.empty() ? nullptr : last_error.c_str();