test-data/unit/plugins/depshook.py

from __future__ import annotations

from mypy.nodes import MypyFile
from mypy.plugin import Plugin


class DepsPlugin(Plugin):
    def get_additional_deps(self, file: MypyFile) -> list[tuple[int, str, int]]:
        if file.fullname == "__main__":
            return [(10, "err", -1)]
        return []


def plugin(version: str) -> type[DepsPlugin]:
    return DepsPlugin