argparse.ArgumentParser.parse_args() accepts any Iterable[str], not
just Sequence[str]. The latest typeshed reflects this with the signature
`def parse_args(args: Iterable[str] | None = ...) -> Namespace`.
Update all main(argv:) parameters from `Sequence[str] | None` to
`Iterable[str] | None` and adjust imports accordingly.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This check requires authors to initialize empty or zero builtin types
using the literal syntax (e.g., `{}` instead of `dict()`).
Authors may ignore this requirement for certain builtins using the
`--ignore` option.
Authors may also forbid calling `dict()` with keyword arguments
(`dict(a=1, b=2)`) using the `--no-allow-dict-kwargs` flag.
