code: def parse_cmdline(argv):
      """Parse the commandline."""
      parser = argparse.ArgumentParser()
  
      parser.add_argument(
          "--metrics_dir",
          help="Path to the directory with metrics files.",
      )
  
      known_args, _ = parser.parse_known_args(argv)
  
      return known_args
  
file_path: deepvariant/tools/print_f1.py
imports: import argparse
  import json
  import logging
  from os import listdir
  from os.path import isfile
  from os.path import join
  import re
label_desc: Use image node_id 1 for calling a global function with example usage: parse_cmdline(argv) and returns: known_args