def localtime(secs=None):
    return 0

def ticks_ms():
    return 0

def mktime():
    return 0

def sleep(seconds):
    pass

def sleep_ms(ms):
    pass

def sleep_us(us):
    pass

def ticks_ms():
    return 0

def ticks_us():
    return 0

def ticks_cpu():
    return 0

def ticks_add(ticks_in, delta_in):
    return 0

def ticks_diff(old, new):
    return 0

def time():
    return 0