code: def _maybe_enter_eager_mode(eager):
      if eager:
          with context.eager_mode():
              yield
      else:
          yield
  
imports: import contextlib
  import threading
  import weakref
  from tensorflow.python import pywrap_tfe
  from tensorflow.python.autograph.core import ag_ctx
  from tensorflow.python.autograph.impl import api
  from tensorflow.python.distribute import distribute_lib
  from tensorflow.python.distribute import distribute_utils
  from tensorflow.python.distribute import shared_variable_creator
  from tensorflow.python.eager import context
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import device
  from tensorflow.python.framework import ops
  from tensorflow.python.ops import summary_ops_v2
  from tensorflow.python.ops import variable_scope
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.training import coordinator
  from tensorflow.python.util import traceback_utils
label_desc: Use image node_id 4 for calling a global function with example usage: _maybe_enter_eager_mode(eager) without return types