class_docstr: Collective all-to-all communication.
class_docstr_tok: ["Collective","all-to-all","communication","."]
code: def __init__(self, comm):
      chainer.utils.experimental("chainermn.functions.AllToAll")
      self.comm = comm
  
imports: import chainer
  from chainer import backend
  import numpy
label_desc: Use image node_id 1 to create a new AllToAll object from inherited base classes: chainer with example: obj = AllToAll(comm)