class_docstr: Launch collectives on one replica.
class_docstr_tok: ["Launch","collectives","on","one","replica","."]
docstr: Whether this launcher can order NCCL operations.
docstr_tok: ["Whether","this","launcher","can","order","NCCL","operations","."]
code: def can_order_nccl(self):
      """Whether this launcher can order NCCL operations."""
      return self._use_ordering_token()
  
imports: import copy
  import threading
  from typing import Callable, List, Optional, Union
  from tensorflow.python.distribute import collective_util
  from tensorflow.python.distribute import values
  from tensorflow.python.eager import backprop_util
  from tensorflow.python.eager import context
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import indexed_slices
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor_spec
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import collective_ops
  from tensorflow.python.ops import cond
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import nccl_ops
  from tensorflow.python.ops import resource_variable_ops
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.types import core
label_desc: Use image node_id 7 for calling the CollectiveReplicaLauncher obj's underlying member method code with example usage: obj.can_order_nccl() and returns: self