add hints on asserts

    ):

        if files is None:

            files = []

        assert isinstance(status, CsstStatus)

        assert isinstance(files, list)

        assert isinstance(

            status, CsstStatus

        ), "`status` should be a `csst_common.CsstStatus` type objects."

        assert isinstance(

            files, list

        ), "`files` should be a list of `str` type objects."

        for _ in files:

            assert isinstance(_, str)

            assert isinstance(_, str), "`files` should be a list of `str` type objects."

        self.status: CsstStatus = status

        self.files: Optional[list] = files

        self.output: dict = output