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Add sizehint for IdDict constructor with iterator (#60836)

as for the pairs version

Co-authored-by: Andy Dienes <51664769+adienes@users.noreply.github.com>
A
Adriano Meligrana committed
1f75ae74cadeeb9081a861222bd31509c4cb380f
Parent: 421d012
Committed by GitHub <noreply@github.com> on 5/14/2026, 6:04:04 PM