code: def _get_random_labels_tf(self, minibatch_size):
      return self._get_dataset_obj().get_random_labels_tf(
          minibatch_size
      )
  
imports: import os
  import time
  import hashlib
  import numpy
  import tensorflow
  import dnnlib
  import dnnlib.tflib
  from training import misc
  from training import dataset
label_desc: Use image node_id 15 for calling the MetricBase obj's underlying member method code with example usage: obj._get_random_labels_tf(minibatch_size) and returns: self