code: def _lookup_if_dict(target, key):
      if isinstance(target, dict):
          return target[key]
      return target
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import collections
  from absl import logging
  from adanet import tf_compat
  from adanet.ensemble.ensembler import Ensemble
  from adanet.ensemble.ensembler import Ensembler
  import tensorflow.compat.v2
label_desc: Use image node_id 2 for calling a global function with example usage: _lookup_if_dict(target, key) and returns: target, target