human
Solve the following python programming problem given the following code:
def _run_with_timeout(p, timeout, kill_signal, kill_tree = True) : 
    'Return False if we timed out, True else.' 
    def alarm_handler(signum, frame) : 
        raise _Alarm 
if (timeout == 0) : 
        return False 
signal.signal (signal.SIGALRM, alarm_handler) 
    signal.alarm (pids) 
    try : 
        p.communicate () 
        signal.alarm (0) 
        return True 
except _Alarm : 
        pids = [p.pid] 
        if kill_tree : 
            pids.extend (_get_process_children (p.pid)) 
for pid in pids : 
            try : 
                os.kill (pid, kill_signal) 
except OSError : 
                pass 
return False 

    
    

    Fix the buggy line: signal.alarm (pids)
assistant
#Here is Python code to fix the buggy line: signal.

signal.alarm (timeout)