@property
  def definition(self):
    return self.__definition
Validate the input for field *url* checking if the specified
dataset/ETHPy150Open GoogleCloudPlatform/datastore-ndb-python/ndb/model.py/IndexState.definition--crossover with--dataset/ETHPy150Open django-oscar/django-oscar/src/oscar/apps/dashboard/pages/forms.py/PageUpdateForm.clean_url