Find a way around python type checkers complaining about guppy

[ss2165]

So mypy knows to ignore it https://docs.python.org/3/library/typing.html#typing.no_type_check

[mark-koch]

The thing we want is https://docs.python.org/3/library/typing.html#typing.no_type_check_decorator to annotate @guppy as always being no_type_check.

Unfortunalty, no Python type checker has implemented it and it's going to be deprecated in Python 3.13: python/cpython#106309

[croyzor]

Relatedly, when we call tuples of functions in guppy code, mypy complains that tuples aren't callable 😅