Add strict typing to src/palace/manager/api/lanes.py

[dbernstein]

Description

Adds type hints to src/palace/manager/api/lanes.py

Motivation and Context

Ongoing effort to bring type hints to the entire code base.

How Has This Been Tested?

Unit tests. Mypy. Very very very minor functional changes that are covered by tests.

Checklist

• I have updated the documentation accordingly.
• All new and existing tests passed.

[codecov]

Codecov Report

❌ Patch coverage is 94.44444% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 93.03%. Comparing base (985e404) to head (bdc530c).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/palace/manager/api/lanes.py	94.44%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3023   +/-   ##
=======================================
  Coverage   93.02%   93.03%           
=======================================
  Files         479      479           
  Lines       43527    43539   +12     
  Branches     6041     6041           
=======================================
+ Hits        40493    40505   +12     
  Misses       1965     1965           
  Partials     1069     1069           

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[tdilauro]

This looks good! 🎸

This is approved, but the "No functional changes" statement in the PR description is not accurate right now (see comment below). Please resolve that comment one way or the other before merging.

[tdilauro]

After ll.846-849, languages is guaranteed to be a list[str], so it might make sense to use a new variable here with a name like languages_list:

    if isinstance(languages, str):
        languages_list = [languages]
    else:
        languages_list = list(languages)

or just

    languages_list = (
        [languages] 
        if isinstance(languages, str)
        else list(languages)
    )

and then be sure to use languages_list for the rest of the function.

Similar case in create_lane_for_tiny_collection below.

[dbernstein]

will fix.

[tdilauro]

See comment above in create_lane_for_small_collection.

[dbernstein]

will fix.

[tdilauro]

The PR comment says that no functional changes were made, but this looks like a functional change. If you decide to leave this in, please update the PR description, so that it is accurate.

Also, we didn't make any changes to the tests in this PR, so that probably means that this case is not covered.

[dbernstein]

The tests already cover checking for a priority = 0. I'll also correct the PR comment.