code: def size(self, index):
      return (
          self.ends[index]
          - self.starts[index]
          + self.shifts.extra_length
      )
  
imports: import json
  import logging
  import os
  import random
  from pathlib import Path
  import numpy
  import torch
  import torch.utils.data
  from .None import data_utils
  from fairseq.data.fairseq_dataset import FairseqDataset
label_desc: Use image node_id 7 for calling the CodeDataset obj's underlying member method code with example usage: obj.size(index) and returns: unknown