human
Complete this python program:
def _test():
assistant
#Here is the Python program you requested.

    """Some tests
    """
    import thread
    import time
    def f(x):
        return (x * x)
    def work(seconds):
        print ('[%d]    Start    to    work    for    %fs...' % (thread.get_ident(), seconds))
        time.sleep(seconds)
        print ('[%d]    Work    done    (%fs).' % (thread.get_ident(), seconds))
        return ('%d    slept    %fs' % (thread.get_ident(), seconds))
    pool = Pool(9)
    result = pool.apply_async(f, (10,))
    print result.get(timeout=1)
    print pool.map(f, range(10))
    it = pool.imap(f, range(10))
    print it.next()
    print it.next()
    print it.next(timeout=1)
    result = pool.apply_async(time.sleep, (3,))
    try:
        print result.get(timeout=1)
    except TimeoutError:
        print 'Good.    Got    expected    timeout    exception.'
    else:
        assert False, 'Expected    exception    !'
    print result.get()
    def cb(s):
        print ('Result    ready:    %s' % s)
    for res in pool.imap(work, xrange(10, 3, (-1)), chunksize=4):
        print 'Item:', res
    for res in pool.imap_unordered(work, xrange(10, 3, (-1))):
        print 'Item:', res
    result = pool.map_async(work, xrange(10), callback=cb)
    try:
        print result.get(timeout=1)
    except TimeoutError:
        print 'Good.    Got    expected    timeout    exception.'
    else:
        assert False, 'Expected    exception    !'
    print result.get()
    result = pool.imap_async(work, xrange(3, 10), callback=cb)
    try:
        print result.get(timeout=1)
    except TimeoutError:
        print 'Good.    Got    expected    timeout    exception.'
    else:
        assert False, 'Expected    exception    !'
    for i in result.get():
        print 'Item:', i
    print '###    Loop    again:'
    for i in result.get():
        print 'Item2:', i
    result = pool.imap_unordered_async(work, xrange(10, 3, (-1)), callback=cb)
    try:
        print result.get(timeout=1)
    except TimeoutError:
        print 'Good.    Got    expected    timeout    exception.'
    else:
        assert False, 'Expected   ...