Fix cached_property MyPy declaration and related MyPy errors

[potiuk]

Part of #19891

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[josh-fell]

@potiuk Have you tried the version check change suggested by @uranusjr in the thread of #19891 to fix the cached_property errors instead of the # type: ignore[attr-defined] comment?

if sys.version_info >= (3, 8):
    from functools import cached_property
else:
    from cached_property import cached_property

@subkanthi tried this and it did not work in his testing (see comment) but I made the change to the Azure provider in my testing and it did resolve the MyPy error.

[potiuk]

@potiuk Have you tried the version check change suggested by @uranusjr in the thread of #19891 to fix the cached_property errors instead of the # type: ignore[attr-defined] comment?

Good point. let me try.

[potiuk]

@potiuk Have you tried the version check change suggested by @uranusjr in the thread of #19891 to fix the cached_property errors instead of the # type: ignore[attr-defined] comment?

Yep. Seems to work @josh-fell ! Good call!

[potiuk]

Much nicer - with far less type-ignores . Thanks Josh for the hint!

[potiuk]

This one fixes a lot :).

[potiuk]

Would love to merge that one as it fixes a lot of issues and we could see the progress ;)

[uranusjr]

Conflits though 😞

[potiuk]

Rebased. Also get rid of the strict-optional from the automl google library