code: def is_all_field_none(self):
          
  
          if self._id_ is not None:
              return False
  
          if self._created is not None:
              return False
  
          if self._updated is not None:
              return False
  
          if self._date_start is not None:
              return False
  
          if self._date_end is not None:
              return False
  
          if self._status is not None:
              return False
  
          if self._statement_number is not None:
              return False
  
          if self._statement_format is not None:
              return False
  
          if self._regional_format is not None:
              return False
  
          if self._alias_monetary_account is not None:
              return False
  
          return True
docs: :rtype: bool