class_docstr: Specification of a cluster environment.
class_docstr_tok: ["Specification","of","a","cluster","environment","."]
code: def set_world_size(self, size: int) -> None:
      pass
  
file_path: pytorch-lightning/src/lightning/fabric/plugins/environments/cluster_environment.py
imports: from abc import ABC, abstractmethod
label_desc: Use image node_id 6 for calling the ClusterEnvironment obj's underlying member method code with example usage: obj.set_world_size(size) without return types