code: def iter_comments(f):
      for tok_type, tok, start, _, _ in tokenize.generate_tokens(
          f.readline
      ):
          if tok_type == tokenize.COMMENT:
              yield tok, start
  
imports: import argparse
  import re
  import sys
  import tokenize
label_desc: Use image node_id 1 for calling a global function with example usage: iter_comments(f) without return types