code: def broadcast(backend, value, root_rank, name):
      return _eval(
          backend,
          bps.broadcast(
              tf.constant(value, name=name),
              root_rank,
              is_variable=False,
          ),
      )
  
imports: import byteps.tensorflow
  import tensorflow
label_desc: Use image node_id 4 for calling a global function with example usage: broadcast(backend, value, root_rank, name) and returns: _eval