code: def engine_launcher_class(ssh_config):
      return ssh_config.Cluster.engine_launcher_class
  
file_path: ipyparallel/ipyparallel/tests/test_ssh.py
imports: from functools import partial
  import pytest
  from traitlets.config import Config
  from .conftest import Cluster
  from .test_cluster import test_get_output
  from .test_cluster import test_restart_engines
  from .test_cluster import test_signal_engines
  from .test_cluster import test_start_stop_cluster
  from .test_cluster import test_to_from_dict
label_desc: Use image node_id 3 for calling a global function with example usage: engine_launcher_class(ssh_config) and returns: ssh_config