code: def rpc_get_num_historic_names_by_address(self, address, **con_info):
          
          if not check_address(address):
              return {'error': 'Invalid address', 'http_status': 400}
  
          db = get_db_state(self.working_dir)
          ret = db.get_num_historic_names_by_address(address)
          db.close()
  
          if ret is None:
              ret = 0
  
          return self.success_response( {'count': ret} )
docs: Get the number of names owned by an address throughout history
          Return {'status': True, 'count': ...} on success
          Return {'error': ...} on failure