code: def diff_list(lhs, rhs):
      return set(lhs).difference(set(rhs))
  
file_path: fairseq/examples/multilingual/data_scripts/check_self_overlaps.py
imports: import os
  import glob
  import argparse
  from utils.dedup import deup
  import sys
label_desc: Use image node_id 2 for calling a global function with example usage: diff_list(lhs, rhs) and returns: set