code: def get_default_args(
      chrf_whitespace=False, chrf_order=6, chrf_beta=2
  ):
      args = argparse.Namespace()
      args.chrf_whitespace = chrf_whitespace
      args.chrf_order = chrf_order
      args.chrf_beta = chrf_beta
      return args
  
file_path: vizseq/vizseq/scorers/chrf.py
imports: from concurrent.futures import ProcessPoolExecutor, as_completed
  from typing import List, Optional, Dict
  import argparse
  from sacrebleu.metrics import CHRF
  from tqdm import tqdm
  from vizseq.scorers import register_scorer, VizSeqScorer, VizSeqScore
label_desc: Use image node_id 1 for calling a global function with example usage: get_default_args(chrf_whitespace, chrf_order, chrf_beta) and returns: args