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If we disable the NSAssert during release mode, this code will continue after NSAssert failure, which will then pass a `nil` value into a dictionary (which cannot have a nil value), hence the clang-tidy warning here https://github.com/flutter/engine/pull/53005#issuecomment-2140975126 *List which issues are fixed by this PR. You must list at least one issue.* https://github.com/flutter/flutter/issues/148279 https://github.com/flutter/flutter/issues/157837 *If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].* [C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style