<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def join_where(self, table, one, operator, two, type='inner'):
 """ 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 """

        return self.join(table, one, operator, two, type, True)