What: propagated back to the caller an error returned by the invoked function doSomething

func doSomething() error {
    ...
    return errDo
}

...

if _, err := container.Invoke(doSomething); err != nil {
    if errors.Is(err , errDo) { 
        // handle doSomething error
    }
    // handle container errors
}

Invoked function result []any may be empty in this way.

Why:

1. It's not very convenient to inspect and assert invoked function result []any just to check an error.
2. The current documentation is not clear, and I expected a such behavior before looked to the source. So I guess that other developers may have the same opinion.
3. It's similar to other dependency injection packages like Uber's dig.