How to avoid duplication on template function return type?

Is there a way to avoid duplication and improve readability on template functions return type ?

Here is an example

template <typename FunctionType>
std::enable_if_t<
    !std::is_void_v<std::invoke_result_t<FunctionType, MyClass*>>,
    std::optional<std::invoke_result_t<FunctionType, MyClass*>>
> CallIfValid(MyClass* instance, FunctionType func)
{
    using InvocationType = std::invoke_result_t<FunctionType, MyClass*>;
    if (instance != nullptr)
    {
        return func(instance);
    }
    else
    {
        return std::optional<InvocationType>();
    }
}

Notice how std::invoke_result_t<FunctionType, MyClass*> ends up duplicated twice in return type, and also a third time in method body.

Any suggestions or trick I am not seeing here ?

Thanks