code: def get_args():
      parser = argparse.ArgumentParser(
          description="generate vocabulary"
      )
      parser.add_argument(
          "--input",
          "-i",
          default=None,
          help="files to read, if empty, stdin is used",
      )
      args = parser.parse_args()
      return args
  
imports: import argparse
  import fileinput
  from collections import defaultdict
label_desc: Use image node_id 1 for calling a global function with example usage: get_args() and returns: args