code: def __init__(self, shard_index, range_begin, range_end):
      self.shard_index = shard_index
      self.range_begin = range_begin
      self.range_end = range_end
  
imports: import json
  import os
  from absl import logging
  from etils import epath
  import tensorflow_datasets.public_api
label_desc: Use image node_id 1 to create a new Slice object  with example: obj = Slice(shard_index, range_begin, range_end)