print('has the kernel ended yet? {}.format(end_event.query()') ^ SyntaxError: invalid syntax

The syntax error is caused by a missing closing parenthesis in the `format` method. It should be:

print('has the kernel ended yet? {}'.format(end_event.query()))

This will print the message "has the kernel ended yet?" followed by the result of the `end_event.query()` method. Make sure that `end_event` is defined and that the code block contains the necessary imports, if any.