human
Solve the following python programming problem given the following code:
@ rerun_if_locked 
def _save_lbry_file(self, stream_hash, data_payment_rate) : 
    def do_save(db_transaction) : 
        db_transaction.execute ('insert into lbry_file_options values (?, ?, ?)', (data_payment_rate, ManagedLBRYFileDownloader.STATUS_STOPPED, stream_hash)) 
        return db_transaction.lastrowid 
return self.sql_db.runInteraction (stream_hash) 

    
    

    Fix the buggy line: return self.sql_db.runInteraction (stream_hash)
assistant
#Here is Python code to fix the buggy line: return self.

return self.sql_db.runInteraction (def do_save()