class_docstr: Abstract class defining the functions that a Communicator should implement.
class_docstr_tok: ["Abstract","class","defining","the","functions","that","a","Communicator","should","implement","."]
docstr: Broadcasts the tensor to all parties.
docstr_tok: ["Broadcasts","the","tensor","to","all","parties","."]
code: def broadcast(self, tensor, src, async_op=False):
      """Broadcasts the tensor to all parties."""
      raise NotImplementedError("broadcast is not implemented")
  
imports: import sys
  import timeit
  from crypten.config import cfg
label_desc: Use image node_id 12 for calling the Communicator obj's underlying member method code with example usage: obj.broadcast(tensor, src, async_op) without return types