tree ec5182374128249e1ee011c84fd2b3fec3600548
parent aa29358c5e853ba152b5ea3247c102923958a7f4
author suragch <studymongolian@gmail.com> 1677021383 +0800
committer GitHub <noreply@github.com> 1677021383 +0000
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fix spelling typo (#120062)

* fix spelling typo

* _index not nullable

This address the comment here: https://github.com/flutter/flutter/pull/120062#issuecomment-1421424676