code: def _get_max_expert_size():
      """Get the maximum ep_size from all the created groups."""
      assert (
          _EXPERT_PARALLEL_GROUP is not None
      ), "Warning! Process group not initialized"
      keylist = []
      for key in _EXPERT_PARALLEL_GROUP.keys():
          # index 2 is ep_size in the group name: ep_size_<ep_size>
          index = 2
          keylist.append(int(key.split("_")[index]))
      return max(keylist) if len(keylist) > 0 else None
  
imports: from deepspeed import comm
  from deepspeed.utils import log_dist
  from deepspeed.utils.exceptions import DeprecatedException
label_desc: Use image node_id 7 for calling a global function with example usage: _get_max_expert_size() and returns: unknown