code: def create_delete_query(self, tokens):
          
          # From keyword is required
          if not tokens[Keyword.FROM]:
              return None
          where_stmt = self.parse_keyword(Keyword.WHERE, tokens)
          if where_stmt:
              if not where_stmt.startswith('time'):
                  return None
          return DeleteQuery(
              self.parse_keyword(Keyword.FROM, tokens),
              self.parse_keyword(Keyword.WHERE, tokens)
          )
docs: Parse tokens of delete query
          :param tokens: A list of InfluxDB query tokens