How to use the uiautomator2.exceptions.UiObjectNotFoundError function in uiautomator2

def inner(self, *args, **kwargs):
        timeout = kwargs.pop('timeout', self.wait_timeout)
        if not self.wait(timeout=timeout):
            raise UiObjectNotFoundError({
                'code': -32002,
                'message': E(self.selector.__str__())
            })
        return fn(self, *args, **kwargs)

def must_wait(self, exists=True, timeout=None):
        """ wait and if not found raise UiObjectNotFoundError """
        if not self.wait(exists, timeout):
            raise UiObjectNotFoundError({'code': -32002, 'method': 'wait'})

    @retry(UiObjectNotFoundError, delay=.5, tries=3, jitter=0.1, logger=logging) # yapf: disable
    def info(self):
        '''ui object info.'''
        return self.jsonrpc.objInfo(self.selector)

def _inner(self, *args, **kwargs):
        if not _fail_prompt_enabled:
            return fn(self, *args, **kwargs)

        from uiautomator2 import messagebox
        try:
            return fn(self, *args, **kwargs)
        except UiObjectNotFoundError as e:
            result = messagebox.retryskipabort(str(e), 30)
            if result == 'retry':
                return _inner(self, *args, **kwargs)
            elif result == 'skip':
                return True
            else:
                raise

return jsondata.get('result')

        # error happends
        err = JsonRpcError(error, method)

        def is_exception(err, exception_name):
            return err.exception_name == exception_name or exception_name in err.message


        if isinstance(
                err.data,
                six.string_types) and 'UiAutomation not connected' in err.data:
            err.__class__ = UiAutomationNotConnectedError
        elif err.message:
            if is_exception(err, 'uiautomator.UiObjectNotFoundException'):
                err.__class__ = UiObjectNotFoundError
            elif is_exception(err, 'android.support.test.uiautomator.StaleObjectException'):
                # StaleObjectException
                # https://developer.android.com/reference/android/support/test/uiautomator/StaleObjectException.html
                # A StaleObjectException exception is thrown when a UiObject2 is used after the underlying View has been destroyed.
                # In this case, it is necessary to call findObject(BySelector) to obtain a new UiObject2 instance.
                err.__class__ = StaleObjectExceptionError
            elif is_exception(err, 'java.lang.NullObjectException'):
                err.__class__ = NullObjectExceptionError
            elif is_exception(err, 'java.lang.NullPointerException'):
                err.__class__ = NullPointerExceptionError
        raise err