Method GetStringKey

base/attribute.h:85–89

  }

  absl::optional<absl::string_view> GetStringKey() const {
    return absl::holds_alternative<std::string>(value_)
               ? absl::optional<absl::string_view>(absl::get<3>(value_))
               : absl::nullopt;
  }

  absl::optional<bool> GetBoolKey() const {
    return absl::holds_alternative<bool>(value_)