code: def clear(self):
          
          self.country_code = None
          self.national_number = None
          self.extension = None
          self.italian_leading_zero = None
          self.number_of_leading_zeros = None
          self.raw_input = None
          self.country_code_source = CountryCodeSource.UNSPECIFIED
          self.preferred_domestic_carrier_code = None
docs: Erase the contents of the object