code: def _check_no_signature(func):
      signature = torch.jit.annotations.get_signature(
          func, None, fake_range(), inspect.ismethod(func)
      )
      if signature is None:
          qual_name = _jit_internal._qualified_name(func)
          raise RuntimeError(
              f"Must explicitly add type annotations to overloaded functions: {qual_name}"
          )
  
imports: import collections
  import functools
  import inspect
  import sys
  import textwrap
  import types
  import warnings
  from typing import Dict, List, Set, Type
  import torch
  import torch._jit_internal
  from torch._sources import fake_range
  from torch.jit._builtins import _find_builtin
  from torch.jit._check import AttributeTypeIsSupportedChecker
  from torch.jit._state import _add_script_class, _get_script_class, _python_cu
  from torch.jit.frontend import get_class_properties, get_default_args, get_jit_class_def, get_jit_def
  from torch.nn import Module
label_desc: Use image node_id 19 for calling a global function with example usage: _check_no_signature(func) without return types