    def stop(self):
        """Stop the proxy.

        Will be called during teardown if should_start is True.

        **Subclasses must define this method**
        if the proxy is to be started by the Hub
        """
Stop the proxy.

Will be called during teardown if should_start is True.

**Subclasses must define this method**
if the proxy is to be started by the Hub
jupyterhub/proxy.py