code: def all_variable_creators():
      return (
          (
              "cross_replica_context",
              _create_variable_in_cross_replica_context,
          ),
          ("replica_context", _create_variable_in_replica_context),
      )
  
imports: import os
  from absl import logging
  from absl.testing import parameterized
  from sonnet.src import initializers
  from sonnet.src import test_utils
  from sonnet.src.distribute import replicator
  from sonnet.src.distribute import replicator_test_utils
  import tensorflow
label_desc: Use image node_id 3 for calling a global function with example usage: all_variable_creators() and returns: str,  _create_variable_in_cross_replica_context,  str,  _create_variable_in_replica_context