class_docstr: Represents a skip connection layout across partitions.
docstr: Whether the given namespace and name requires partition-to-partition
  copy or not.
docstr_tok: ["Whether","the","given","namespace","and","name","requires","partition-to-partition","copy","or","not","."]
code: def requires_copy(self, ns: Namespace, name: str) -> bool:
      """Whether the given namespace and name requires partition-to-partition
      copy or not.
      """
      prev_j, next_j = self.by_ns_name.get((ns, name), (-1, -1))
      return prev_j != next_j
  
file_path: pytorch/torch/distributed/pipeline/sync/skip/layout.py
imports: from typing import Dict, Iterable, List, Tuple
  from torch import nn
  from .namespace import Namespace
label_desc: Use image node_id 3 for calling the SkipLayout obj's underlying member method code with example usage: obj.requires_copy(ns, name) and returns: unknown