ruff

fc94581a - Avoid re-using symbol in RUF024 fix (#24316)

Avoid re-using symbol in RUF024 fix (#24316) ## Summary Follows the suggestion from https://github.com/astral-sh/ruff/issues/24304 whereby if `key` is used, we try `key_0`, `key_1`, etc. Closes https://github.com/astral-sh/ruff/issues/24304.