def match(self, module_name: str) -> bool:
        """Does `module_name` indicate a module in one of our packages?"""
        if not module_name:
            return False

        for m in self.modules:
            if module_name.startswith(m):
                if module_name == m:
                    return True
                if module_name[len(m)] == ".":
                    # This is a module in the package
                    return True

        return False
Does `module_name` indicate a module in one of our packages?
coverage/files.py