[tpm] grabbing 2 input params at a time?

[Fulko Hew]

Sorry, my brain has gone on vacation...

Whats the easiest way to grab two parameters at a time, that were passed
into a subroutine?

ie.

mysub('a', 1, 'b', 2, 'c', 3);

sub mysub {
   while (@_) { push @letters, shift; push @nums, shift; }
}
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