code: def is_all_field_none(self):
          
  
          if self._MonetaryAccountBank is not None:
              return False
  
          if self._MonetaryAccountJoint is not None:
              return False
  
          if self._MonetaryAccountLight is not None:
              return False
  
          if self._MonetaryAccountSavings is not None:
              return False
  
          return True
docs: :rtype: bool