Fix KeyValuePair type inference

[michaelstaib]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (28f900a) to head (f5c650d).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@     Coverage Diff      @@
##   main   #9354   +/-   ##
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