code: def test_device_mesh_manager():
      spawn(check_device_mesh_manager, 4)
  
imports: from colossalai.cluster.device_mesh_manager import DeviceMeshInfo, DeviceMeshManager
  from colossalai.initialize import launch
  from colossalai.logging import disable_existing_loggers
  from colossalai.testing import spawn
label_desc: Use image node_id 2 for calling a global function with example usage: test_device_mesh_manager() without return types