Spatie\Activitylog\ActivityLogger::normalizeCauser PHP Method

    protected function normalizeCauser($modelOrId) : Model
    {
        if ($modelOrId instanceof Model) {
            return $modelOrId;
        }
        if ($model = $this->auth->getProvider()->retrieveById($modelOrId)) {
            return $model;
        }
        throw CouldNotLogActivity::couldNotDetermineUser($modelOrId);
    }