code: def _norm_lookup(self, record, hist=None):
          
  
          record, hist = self.data_lookup_method(fields_list=self.fields,
                                                 mongo_db_obj=self.mongo,
                                                 hist=hist,
                                                 record=record,
                                                 lookup_type='normLookup')
          return record, hist
docs: Perform generic validation lookup
  
          :param dict record: dictionary of values to validate
          :param dict hist: existing input of history values