code: def targeting_criteria(self, id=None, **kwargs):
          
          self._validate_loaded()
          if id is None:
              return TargetingCriteria.all(self.account, self.id, **kwargs)
          else:
              return TargetingCriteria.load(self.account, id, **kwargs)
docs: Returns a collection of targeting criteria available to the
          current line item.