def __repr__(self):
        return "<Requirement(package={package}, version='{version}')>".format(
            package=self.package, version=self.version)
def toggle_ignoring_sigint_v2_engine(cls, toggle: bool) -> None:
        assert cls._signal_handler is not None
        cls._signal_handler._toggle_ignoring_sigint_v2_engine(toggle)