Method As

common/value.h:1081–1084

  // `AsBool()`.
  template <typename T>
  std::enable_if_t<std::is_same_v<BoolValue, T>, absl::optional<BoolValue>>
  As() & {
    return AsBool();
  }
  template <typename T>
  std::enable_if_t<std::is_same_v<BoolValue, T>, absl::optional<BoolValue>> As()
      const& {