def METHOD_NAME(self, port, host, proxied_path):
    worker_url = f"{host}:{port}/{proxied_path}"
    msg = """
        <p> Try navigating to <a href=http://{}>{}</a> for your worker dashboard </p>
        <p>
        Dask tried to proxy you to that page through your
        Scheduler's dashboard connection, but you don't have
        jupyter-server-proxy installed.  You may want to install it
        with either conda or pip, and then restart your scheduler.
        </p>
        <p><pre> conda install jupyter-server-proxy -c conda-forge </pre></p>
        <p><pre> python -m pip install jupyter-server-proxy</pre></p>
        <p>
        The link above should work though if your workers are on a
        sufficiently open network.  This is common on single machines,
        but less common in production clusters.  Your IT administrators
        will know more
        </p>
    """.format(
        worker_url,
        worker_url,
    )
    self.write(msg)