# newInstance method Null safety

1. @override

PresentationModel newInstance(

1. StorageConditionsModel conditions

)
override

## Implementation

    @override
    PresentationModel newInstance(StorageConditionsModel conditions) {
      return PresentationModel(
        appId: appId,
        description: 'New presentation',
        documentID: newRandomKey(),
        conditions: conditions,
      );
    }