input: 
  def load_properties_from_fixture(fixture_file: str, fixture_folder: str) -> str:
      """ Load a JSON fixture file, extract properties from it, create Property objects 
      from the properties, and save them to the database. The saved objects count will
      be printed to the console.
      >>> load_properties_from_fixture('properties.json', 'models/fixtures')
      '3 objects saved'
      """
      properties_to_save = []
      path = os.path.sep.join([base_path, 'app', fixture_folder, fixture_file])
      with open(path) as file_:
          data = json.load(file_)
      properties = data['properties']
      for property_ in properties:
          property_.pop('id')
          properties_to_save.append(Property(**property_))
      Property.objects.insert(properties_to_save)
  
      return "{} objects saved".format(len(properties_to_save))
  
output:     properties_to_save = []
      path = os.path.sep.join([base_path, 'app', fixture_folder, fixture_file])
      with open(path) as file_:
          data = json.load(file_)
      properties = data['properties']
      for property_ in properties:
          property_.pop('id')
          properties_to_save.append(Property(**property_))
      Property.objects.insert(properties_to_save)
  
      return "{} objects saved".format(len(properties_to_save))