code: def init_pointer(self):
      self.pointer = 0
      if self.randomize:
          idx = np.arange(self.num_pairs)
          np.random.shuffle(idx)
          self.inputs = self.inputs[idx, :]
          self.labels = self.labels[idx, :]
  
file_path: baselines/baselines/gail/dataset/mujoco_dset.py
imports: from baselines import logger
  import numpy
label_desc: Use image node_id 2 for calling the Dset obj's underlying member method code with example usage: obj.init_pointer() without return types