Detecting definition of a 'pip'

As many of the 1KTs here on the forum know, a handful of brokers are trading in 1/10ths of a pip.

How do I go about detecting that in Metatrader?

The Digits function isn't useful nor is the Point function, so what's left?

I used FXPro as my broker, most of their pairs are 3/5 digits pairs, some JPY pairs are still 2 digits. The Point function still works. I have to put an extra zero in the counting of pips. I always make specific if operator:
If (Digits == 3 || Digits == 5) for the 3/5 digit pairs
If (Digits == 2 || Digits == 4) for the 2/4 digit pairs.
I hope this helps
T101