code: def world_size(self):
      return self.pp_degree * self.tp_degree * self.dp_degree
  
file_path: H2O/h2o_flexgen/benchmark/third_party/DeepSpeed/deepspeed/checkpoint/reshape_3d_utils.py
imports: from .reshape_utils import get_files, get_files_with_prefix, partition_data, get_zero_files
  from .constants import MODEL_FILE_PREFIX, LAYER_FILE_PREFIX
  from .reshape_meg_2d import reshape_meg_2d_parallel, meg_2d_parallel_map
label_desc: Use image node_id 4 for calling the model_3d_desc obj's underlying member method code with example usage: obj.world_size() and returns: unknown