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Run `lintrunner -a` to apply this patch.

Unnecessary "elif" after "return", remove the leading "el" from "elif" (no-else-return) See [no-else-return](https://pylint.pycqa.org/en/latest/user_guide/messages/refactor/no-else-return.html). To disable, use ` # pylint: disable=no-else-return`

Do not use `len(SEQUENCE)` without comparison to determine if a sequence is empty (use-implicit-booleaness-not-len) See [use-implicit-booleaness-not-len](https://pylint.pycqa.org/en/latest/user_guide/messages/convention/use-implicit-booleaness-not-len.html). To disable, use ` # pylint: disable=use-implicit-booleaness-not-len`