code: def is_all_field_none(self):
          
  
          if self._id_ is not None:
              return False
  
          if self._time_responded is not None:
              return False
  
          if self._time_expiry is not None:
              return False
  
          if self._monetary_account_id is not None:
              return False
  
          if self._amount_inquired is not None:
              return False
  
          if self._amount_responded is not None:
              return False
  
          if self._alias is not None:
              return False
  
          if self._counterparty_alias is not None:
              return False
  
          if self._description is not None:
              return False
  
          if self._attachment is not None:
              return False
  
          if self._status is not None:
              return False
  
          if self._minimum_age is not None:
              return False
  
          if self._require_address is not None:
              return False
  
          if self._address_shipping is not None:
              return False
  
          if self._address_billing is not None:
              return False
  
          if self._geolocation is not None:
              return False
  
          if self._redirect_url is not None:
              return False
  
          if self._type_ is not None:
              return False
  
          if self._sub_type is not None:
              return False
  
          if self._allow_chat is not None:
              return False
  
          if self._eligible_whitelist_id is not None:
              return False
  
          return True
docs: :rtype: bool