How to use the typeguard.__init__._CallMemo function in typeguard

:param retval: the value about to be returned from the call
    :return: ``True``
    :raises TypeError: if there is a type mismatch

    """
    if memo is None:
        # faster than inspect.currentframe(), but not officially
        # supported in all python implementations
        frame = sys._getframe(1)

        try:
            func = find_function(frame)
        except LookupError:
            return True  # This can happen with the Pydev/PyCharm debugger extension installed

        memo = _CallMemo(func, frame.f_locals)

    if 'return' in memo.type_hints:
        if memo.type_hints['return'] is NoReturn:
            raise TypeError('{}() was declared never to return but it did'.format(memo.func_name))

        try:
            check_type('the return value', retval, memo.type_hints['return'], memo)
        except TypeError as exc:  # suppress unnecessarily long tracebacks
            raise exc from None

    return True

:return: ``True``
    :raises TypeError: if there is an argument type mismatch

    """
    if memo is None:
        # faster than inspect.currentframe(), but not officially
        # supported in all python implementations
        frame = sys._getframe(1)

        try:
            func = find_function(frame)
        except LookupError:
            return True  # This can happen with the Pydev/PyCharm debugger extension installed

        memo = _CallMemo(func, frame.f_locals)

    for argname, expected_type in memo.type_hints.items():
        if argname != 'return' and argname in memo.arguments:
            value = memo.arguments[argname]
            description = 'argument "{}"'.format(argname)
            try:
                check_type(description, value, expected_type, memo)
            except TypeError as exc:  # suppress unnecessarily long tracebacks
                raise exc from None

    return True

if not self._active:
            # This happens if all_threads was enabled and a thread was created when the checker was
            # running but was then stopped. The thread's profiler callback can't be reset any other
            # way but this.
            sys.setprofile(self._previous_thread_profiler)
            return

        # If an actual profiler is running, don't include the type checking times in its results
        if event == 'call':
            try:
                func = find_function(frame)
            except Exception:
                func = None

            if func is not None and self.should_check_type(func):
                memo = self._call_memos[frame] = _CallMemo(
                    func, frame.f_locals, forward_refs_policy=self.annotation_policy)
                if memo.is_generator:
                    return_type_hint = memo.type_hints['return']
                    if return_type_hint is not None:
                        origin = getattr(return_type_hint, '__origin__', None)
                        if origin in generator_origin_types:
                            # Check the types of the yielded values
                            memo.type_hints['return'] = return_type_hint.__args__[0]
                else:
                    try:
                        check_argument_types(memo)
                    except TypeError as exc:
                        warn(TypeWarning(memo, event, frame, exc))

            if self._previous_profiler is not None:
                self._previous_profiler(frame, event, arg)

async def async_wrapper(*args, **kwargs):
        memo = _CallMemo(python_func, _localns, args=args, kwargs=kwargs)
        check_argument_types(memo)
        retval = await func(*args, **kwargs)
        check_return_type(retval, memo)
        return retval