code: def register_get_session_function(func):
      global _KERAS_GET_SESSION_FUNCTION
      _KERAS_GET_SESSION_FUNCTION = func
  
file_path: tensorflow-upstream/tensorflow/python/util/keras_deps.py
imports: from tensorflow.python.util.tf_export import tf_export
label_desc: Use image node_id 3 for calling a global function with example usage: register_get_session_function(func) without return types