def __len__(self):
        return self.num_feat
Dissociate previously associated model from the given parent.
dataset/ETHPy150Open dcramer/django-compositepks/django/contrib/gis/gdal/layer.py/Layer.__len__--crossover with--dataset/ETHPy150Open sdispater/orator/orator/orm/relations/belongs_to.py/BelongsTo.dissociate