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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_sql(self, debug=False, use_cache=True):
 """ Generates the sql for this query and returns the sql as a string. :type debug: bool :param debug: If True, the sql will be returned in a format that is easier to read and debug. Defaults to False :type use_cache: bool :param use_cache: If True, the query will returned the cached sql if it exists rather then generating the sql again. If False, the sql will be generated again. Defaults to True. :rtype: str :return: The generated sql for this query """

        # TODO: enable caching
        # if self.sql and use_cache and not debug:
        #     return self.sql

        # auto alias any naming collisions
        self.check_name_collisions()

        # if debugging, return the debug formatted sql
        if debug:
            return self.format_sql()

        # build each part of the query
        sql = ''
        sql += self.build_withs()
        sql += self.build_select_fields()
        sql += self.build_from_table()
        sql += self.build_joins()
        sql += self.build_where()
        sql += self.build_groups()
        sql += self.build_order_by()
        sql += self.build_limit()

        # remove any whitespace from the beginning and end of the sql
        self.sql = sql.strip()

        return self.sql