def locate(self) -> CheckupLocator | None:
        """
        Generate a ``CheckupLocator`` for the source location in the user's
        code that the checkup heuristic warned about.

        Returns:
            CheckupLocator | None

        """
        import inspect

        if (frame := find_last_user_frame()) is None:
            return None

        info = inspect.getframeinfo(frame)

        stack = traceback.extract_stack(frame)

        return CheckupLocator(
            filename=info.filename,
            lineno=info.lineno,
            traceback="".join(traceback.format_list(stack)),
        )

        Generate a ``CheckupLocator`` for the source location in the user's
        code that the checkup heuristic warned about.

        Returns:
            CheckupLocator | None

        
cupynumeric/_array/doctor.py