human
Solve the following python programming problem given the following code:
@ defer.inlineCallbacks 
def get_all_updated_tags(self, last_id, current_id, limit) : 
    'Get all the client tags that have changed on the server
        Args:
            last_id(int): The position to fetch from.
            current_id(int): The position to fetch up to.
        Returns:
            A deferred list of tuples of stream_id int, user_id string,
            room_id string, tag string and content string.
        ' 
    def get_all_updated_tags_txn(txn) : 
        sql = 'SELECT stream_id, user_id, room_id FROM room_tags_revisions as r WHERE ? < stream_id AND stream_id <= ? ORDER BY stream_id ASC LIMIT ?' 
        txn.execute (sql, (last_id, current_id, limit)) 
        return txn.fetchall () 
tag_ids = (yield self.runInteraction ('get_all_updated_tags', get_all_updated_tags_txn)) 
    def get_tag_content(txn, tag_ids) : 
        sql = 'SELECT tag, content FROM room_tags WHERE user_id=? AND room_id=?' 
        results = [] 
        for (stream_id, user_id, room_id) in tag_ids : 
            txn.execute (sql, (user_id, room_id)) 
            tags = [] 
            for (tag, content) in txn.fetchall () : 
                tags.append (((json.dumps (tag) + ':') + content)) 
tag_json = (('{' + ','.join (tags)) + '}') 
            results.append ((stream_id, user_id, room_id, tag_json)) 
return results 
batch_size = 50 
    results = [] 
    for i in xrange (0, len (tag_ids), results) : 
        tags = (yield self.runInteraction ('get_all_updated_tag_content', get_tag_content, tag_ids [i : (i + batch_size)])) 
        results.extend (tags) 
defer.returnValue (results) 

    
    

    Fix the buggy line: for i in xrange (0, len (tag_ids), results) :
assistant
#Here is Python program to fix the buggy line: for i in xrange (0, len (tag_ids), results) :
.

for i in xrange (0, len (tag_ids), batch_size) :