code: def all_to_all(input_, comm_spec):
      return _AllToAll.apply(input_, comm_spec)
  
imports: import operator
  from enum import Enum
  from functools import reduce
  import torch
  import torch.distributed
  from torch.distributed import ReduceOp
label_desc: Use image node_id 11 for calling a global function with example usage: all_to_all(input_, comm_spec) and returns: _AllToAll