@property
    def count(self):
        if self._count == -1:
            self.reload()
        return self._count
Ensures a contact with the same name doesn't already exists
dataset/ETHPy150Open shichao-an/115wangpan/u115/api.py/Directory.count--crossover with--dataset/ETHPy150Open treeio/treeio/treeio/identities/forms.py/ContactTypeForm.clean_name