code: def visit_constructor(cls, name="__init__", args=None):
      init = name == "__init__"
      argname = cls.__name__.lower()
      argtype = cls.__name__
      initarg = args or f"{argname}: {argtype} | None = None"
      selfarg = "self" if init else "cls"
      rettype = "None" if init else "Self"
      arglist = f"{selfarg}, {initarg}"
      sig = f"{name}({arglist}) -> {rettype}"
      return f"def {sig}: ..."
  
imports: import os
  import inspect
  import textwrap
label_desc: Use image node_id 16 for calling a global function with example usage: visit_constructor(cls, name, args) and returns: str, sig, str