code: def test_ssh_hosts_empty_list():
      with pytest.raises(ValueError):
          SSHCluster(hosts=[])
  
file_path: distributed/distributed/deploy/tests/test_ssh.py
imports: from __future__ import annotations
  import pytest
  import sys
  import dask
  from distributed import Client
  from distributed.compatibility import MACOS, WINDOWS
  from distributed.deploy.ssh import SSHCluster
  from distributed.utils_test import gen_test
label_desc: Use image node_id 2 for calling a global function with example usage: test_ssh_hosts_empty_list() without return types