Method AsCustomList

common/value.h:944–946

      const& ABSL_ATTRIBUTE_LIFETIME_BOUND;
  absl::optional<CustomListValue> AsCustomList() &&;
  absl::optional<CustomListValue> AsCustomList() const&& {
    return common_internal::AsOptional(AsCustomList());
  }

  // Performs a checked cast from a value to a custom map value,
  // returning a non-empty optional with either a value or reference to the