code: def get_layer_parents(adjList, lidx):
      """Returns parent layer indices for a given layer index."""
      # Return all parents (layer indices in list) for layer lidx
      return [e[0] for e in adjList if e[1] == lidx]
  
file_path: dragonfly/examples/nas/cg/run_tensorflow_testset.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import numpy
  import tensorflow
  import numpy
  import os
label_desc: Use image node_id 1 for calling a global function with example usage: get_layer_parents(adjList, lidx) and returns: unknown