human
Solve the following python programming problem given the following code:
def get_all_updated_pushers(self, last_id, current_id, limit) : 
    def get_all_updated_pushers_txn(txn) : 
        sql = 'SELECT id, user_name, access_token, profile_tag, kind, app_id, app_display_name, device_display_name, pushkey, ts, lang, data FROM pushers WHERE ? < id AND id <= ? ORDER BY id ASC LIMIT ?' 
        txn.execute (sql, (last_id, current_id, limit)) 
        updated = txn.fetchall () 
        sql = 'SELECT stream_id, user_id, app_id, pushkey FROM deleted_pushers WHERE ? < stream_id AND stream_id <= ? ORDER BY stream_id ASC LIMIT ?' 
        txn.execute (sql, (last_id, current_id, limit)) 
        deleted = txn.fetchall () 
        return (updated, deleted) 
return self.runInteraction ('get_all_updated_pushers', <MASK>) 
    
    Given the code above, what is a proper replacement for <MASK>? Choose among: current_id, limit, last_id, self
assistant
#Here is a proper replacement for <MASK>.
def get_all_updated_pushers_txn(