code: def get_trainable_variables(self):
      return tf.get_collection(
          tf.GraphKeys.TRAINABLE_VARIABLES, self.scope
      )
  
file_path: baselines/baselines/gail/adversary.py
imports: import tensorflow
  import numpy
  from baselines.common.mpi_running_mean_std import RunningMeanStd
  from baselines.common import tf_util
label_desc: Use image node_id 4 for calling the TransitionClassifier obj's underlying member method code with example usage: obj.get_trainable_variables() and returns: tf