code: def get_long_data_subset(dataset, size=500):
      """Get a subset of desired size by sorting based on src_lengths descending"""
      return sort_dataset(dataset, reverse=True)[:size]
  
imports: from fairseq import tasks
  import numpy
  import logging
  import random
  from fairseq import options
  import torch
  import os
  import soundfile
  from fairseq.data.audio.audio_utils import get_waveform, parse_path
label_desc: Use image node_id 8 for calling a global function with example usage: get_long_data_subset(dataset, size) and returns: sort_dataset