# \[Pitch\] Primary Associated Types in the Standard Library

**URL:** <https://forums.swift.org/t/pitch-primary-associated-types-in-the-standard-library/56426>\
**Category:** Pitches\
**Tags:** generics, protocols, stdlib\
**Created:** [April 1, 2022, 12:31am UTC](https://forums.swift.org/t/pitch-primary-associated-types-in-the-standard-library/56426 "2022-04-01T00:31:19Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![John\_McCall](https://sea2.discourse-cdn.com/swift/user_avatar/forums.swift.org/john_mccall/32/1351_2.png) [@John\_McCall](https://forums.swift.org/u/John_McCall)\
**Post date:** [April 1, 2022, 6:04pm UTC](https://forums.swift.org/t/pitch-primary-associated-types-in-the-standard-library/56426/11 "2022-04-01T18:04:47Z")

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Yeah, that was the suggestion Keith Bauer made [in the first SE-0346 review](https://forums.swift.org/t/se-0346-lightweight-same-type-requirements-for-primary-associated-types/55869/47).

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