template<typename OtherThreadSafetyMode, std::enable_if_t<([UE::Core::Private::BackwardCompatibilityCheck](API\Runtime\Core\UObject\UE__Core__Private__BackwardCompa-)< InThreadSafetyMode, OtherThreadSafetyMode >()), int >> bool Contains ( const [TScriptDelegate](API\Runtime\Core\UObject\TScriptDelegate)< OtherThreadSafetyMode > & InDelegate ) const