class_docstr: An immutable object holding a source code fragment.
  
  When using Source(...), the source lines are deindented.
class_docstr_tok: ["An","immutable","object","holding","a","source","code","fragment",".","When","using","Source","(","...",")",",","the","source","lines","are","deindented","."]
code: def __iter__(self) -> Iterator[str]:
      return iter(self.lines)
  
imports: import ast
  import inspect
  import textwrap
  import tokenize
  import types
  import warnings
  from bisect import bisect_right
  from typing import Iterable
  from typing import Iterator
  from typing import List
  from typing import Optional
  from typing import overload
  from typing import Tuple
  from typing import Union
label_desc: Use image node_id 6 for calling the Source obj's underlying member method code with example usage: obj.__iter__() and returns: iter