code: def _get_expert_broadcast_src_rank(group_name):
      return dist.get_global_rank(
          _get_expert_data_parallel_group(group_name), 0
      )
  
imports: from deepspeed import comm
  from deepspeed.utils import log_dist
  from deepspeed.utils.exceptions import DeprecatedException
label_desc: Use image node_id 17 for calling a global function with example usage: _get_expert_broadcast_src_rank(group_name) and returns: dist