Error: Parameter #1 $factory of method Illuminate\Database\Eloquent\Factories\Factory<Illuminate\Database\Eloquent\Model>::for() expects Illuminate\Database\Eloquent\Factories\Factory|Illuminate\Database\Eloquent\Model, Illuminate\Database\Eloquent\Collection<int, Illuminate\Database\Eloquent\Model>|Illuminate\Database\Eloquent\Model given.
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  Line   Tests/NullableBelongsToTest.php                                        
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  73     Parameter #1 $factory of method                                        
         Illuminate\Database\Eloquent\Factories\Factory<Illuminate\Database\El  
         oquent\Model>::for() expects Illuminate\Database\Eloquent\Factories\F  
         actory|Illuminate\Database\Eloquent\Model,                             
         Illuminate\Database\Eloquent\Collection<int, Illuminate\Database\Eloq  
         uent\Model>|Illuminate\Database\Eloquent\Model given.                  
         🪪  argument.type                                                      
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