code: def _load_tf_config():
      return json.loads(os.environ.get(_TF_CONFIG_ENV, "{}"))
  
imports: import json
  import os
  from tensorflow.python.distribute.cluster_resolver.cluster_resolver import ClusterResolver
  from tensorflow.python.training.server_lib import ClusterSpec
  from tensorflow.python.util.tf_export import tf_export
label_desc: Use image node_id 2 for calling a global function with example usage: _load_tf_config() and returns: json