code: def get_current_replica_id_as_int():
      """Returns the current replica ID as an integer, or `None`."""
      replica_context = distribute_lib.get_replica_context()
      if replica_context:
          replica_id = (
              replica_context._replica_id
          )  # pylint: disable=protected-access
          if not isinstance(replica_id, int):
              replica_id = tensor_util.constant_value(replica_id)
      else:
          replica_id = distribute_lib.get_update_replica_id()
      return replica_id
  
imports: from tensorflow.python.distribute import distribute_lib
  from tensorflow.python.distribute import reduce_util
  from tensorflow.python.eager import context
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor_util
  from tensorflow.python.ops import control_flow_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import variable_scope
  from tensorflow.python.saved_model import save_context
  from tensorflow.python.saved_model import save_options
  from tensorflow.python.training.saving import saveable_object
label_desc: Use image node_id 21 for calling a global function with example usage: get_current_replica_id_as_int() and returns: replica_id