code: def get_object_errors(self):
          
          if self._object_errors is None:
              self._object_errors = [{str(o): o.get_errors()}
                                     for o in self.objects()
                                     if o.has_error()]
  
          return self._object_errors
docs: Gets a list of business error message strings
          for each of the requested objects that had a business error.
          If there was no error, returns an empty list
  
          Returns:
              List of strings