It seems like factory(App\Models\Comme...mOrder()->first()->id)) can also be of type Illuminate\Database\Eloquent\Model; however, parameter $models of Illuminate\Database\Eloq...asOneOrMany::saveMany() does only seem to accept iterable, maybe add an additional type check?
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Ignorable by Annotation
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If this is a false-positive, you can also ignore this issue in your code via the ignore-type annotation