code: def iter(
      self,
      string: str,
      start: Optional[int] = None,
      end: Optional[int] = None,
  ) -> Iterator[Tuple[int, str]]:
      ...
  
imports: from typing import Iterator, Optional, Tuple
label_desc: Use image node_id 1 for calling the Automaton obj's underlying member method code with example usage: obj.iter(string, start, end) without return types