flag_(Flag::StringFlag("config") .Help("Config preset name. Will automatically set flag fields " "using the values from this file of presets. See " "device/google/cuttlefish/shared/config/config_*.json " "for possible values.") .Getter([this]() { return VectorizedFlagValue(configs_);}) .Setter([this](std::string_view arg) -> Result< void > { CF_EXPECT(ChooseConfigs(arg));return {};}))