code: def reset(self):
      self.current_index = 0
      self.load_from_plasma(self.current_index)
  
imports: import os
  import subprocess
  import types
  import cloudpickle
  from pyspark.rdd import RDD
  from pyspark.sql import DataFrame
  from torch.utils.data import Dataset, DataLoader
  from bigdl.dllib.utils.log4Error import *
  from bigdl.dllib.utils.utils import get_node_ip
  from bigdl.orca.learn.mpi.mpi_runner import MPIRunner
  from bigdl.orca.learn.mpi.utils import *
label_desc: Use image node_id 2 for calling the PlasmaNDArrayDataset obj's underlying member method code with example usage: obj.reset() without return types