Runner API compatibility with Python 3.12

[dennismoe]

I've found an issue where the Runner API does not seem to be compatible with Python 3.12.

  File "/home/me/Projects/Repos/repo/src/toplvlpkg/api/entrypoints/metaflow_run_flow.py", line 54, in metaflow_run_flow
    with Runner(
         ^^^^^^^
  File "/home/me/Projects/Repos/repo/.venv/lib/python3.12/site-packages/metaflow/runner/metaflow_runner.py", line 357, in run
    command = self.api(**self.top_level_kwargs).run(
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/me/Projects/Repos/repo/.venv/lib/python3.12/site-packages/metaflow/runner/click_api.py", line 612, in _method
    method_params = _method_sanity_check(
                    ^^^^^^^^^^^^^^^^^^^^^
  File "/home/me/Projects/Repos/repo/.venv/lib/python3.12/site-packages/metaflow/runner/click_api.py", line 97, in _method_sanity_check
    check_type(supplied_v, annotations[supplied_k])
  File "/home/me/Projects/Repos/repo/.venv/lib/python3.12/site-packages/metaflow/_vendor/typeguard/_functions.py", line 105, in check_type
    check_type_internal(value, expected_type, memo)
  File "/home/me/Projects/Repos/repo/.venv/lib/python3.12/site-packages/metaflow/_vendor/typeguard/_checkers.py", line 774, in check_type_internal
    checker(value, origin_type, args, memo)
  File "/home/me/Projects/Repos/repo/.venv/lib/python3.12/site-packages/metaflow/_vendor/typeguard/_checkers.py", line 407, in check_union
    check_type_internal(value, type_, memo)
  File "/home/me/Projects/Repos/repo/.venv/lib/python3.12/site-packages/metaflow/_vendor/typeguard/_checkers.py", line 774, in check_type_internal
    checker(value, origin_type, args, memo)
  File "/home/me/Projects/Repos/repo/.venv/lib/python3.12/site-packages/metaflow/_vendor/typeguard/_checkers.py", line 233, in check_mapping
    check_type_internal(v, value_type, memo)
  File "/home/me/Projects/Repos/repo/.venv/lib/python3.12/site-packages/metaflow/_vendor/typeguard/_checkers.py", line 731, in check_type_internal
    annotation = evaluate_forwardref(annotation, memo)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/me/Projects/Repos/repo/.venv/lib/python3.12/site-packages/metaflow/_vendor/typeguard/_utils.py", line 18, in evaluate_forwardref
    return forwardref._evaluate(memo.globals, memo.locals, frozenset())
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: ForwardRef._evaluate() missing 1 required keyword-only argument: 'recursive_guard'

With Python 3.11.11 the same code works fine.

AFAICS, the recursive_guard argument was removed with Python 3.12

Am I missing something?

[savingoyal]

we have a PR in flight - #2311