code: def ann_to_type(ann, loc, rcb=None):
      the_type = try_ann_to_type(ann, loc, rcb)
      if the_type is not None:
          return the_type
      raise ValueError(
          f"Unknown type annotation: '{ann}' at {loc.highlight()}"
      )
  
imports: import ast
  import builtins
  import dis
  import enum
  import inspect
  import re
  import typing
  import warnings
  from textwrap import dedent
  from typing import Type
  import torch
  from torch._C import _GeneratorType, AnyType, AwaitType, BoolType, ComplexType, DeviceObjType, DictType, EnumType, FloatType, FutureType, InterfaceType, IntType, ListType, NoneType, NumberType, OptionalType, StreamObjType, StringType, TensorType, TupleType, UnionType
  from torch._sources import get_source_lines_and_file
  from .._jit_internal import _Await, _qualified_name, Any, BroadcastingList1, BroadcastingList2, BroadcastingList3, Dict, Future, is_await, is_dict, is_future, is_ignored_fn, is_list, is_optional, is_tuple, is_union, List, Optional, Tuple, Union
  from ._state import _get_script_class
  from torch._ops import OpOverloadPacket
label_desc: Use image node_id 15 for calling a global function with example usage: ann_to_type(ann, loc, rcb) and returns: the_type