code: def join_where(self, table, one, operator, two, type='inner'):
          
          return self.join(table, one, operator, two, type, True)
docs: Add a "join where" clause to the query
  
          :param table: The table to join with, can also be a JoinClause instance
          :type table: str or JoinClause
  
          :param one: The first column of the join condition
          :type one: str
  
          :param operator: The operator of the join condition
          :type operator: str
  
          :param two: The second column of the join condition
          :type two: str
  
          :param type: The join type
          :type type: str
  
          :return: The current QueryBuilder instance
          :rtype: QueryBuilder