[check] want a function vanish() like exists()

[RaiMan]

***** about vanish() see related question comment #5

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i want to wait for a image appear for only 5 sec. if appear do click

wait(image,5).click()

If not appear within 5 sec i want to some other task like exit()

how to if a wait() like

if(wait(image,5)):
     image.click()
else:
    exit()
Ya i got the solution for appear
how to do it for wait 5 sec for vanish if not vanished exit(1)