Add support for attribute docstrings to Sphinx extension

import builtins

import re

import sys

from collections.abc import Callable

from importlib import import_module

from inspect import get_annotations

	what: ObjType, doc_obj: object, doc_obj_name: str,

) -> Callable[[re.Match[str]], str]:

	try:

		module, cls = get_context(what, doc_obj)

		module, cls = get_context(what, doc_obj, doc_obj_name)

	except UnknownObject:

		return lambda m: m.group(0)

	return get_type

def get_context(what: ObjType, obj: object) -> tuple[ModuleType, type|None]:

def get_context(what: ObjType, obj: object, name: str) -> tuple[ModuleType, type|None]:

	"""

	Given an object and its type, return the module it's in and a class if appropriate

		case "function":

			assert hasattr(obj, "__module__"), f"{what} {obj!r} has no attribute '__module__'"

			return import_module(obj.__module__), None

		case "attribute":

			# Only thing to go on is the name, which *should* be fully qualified

			_, parent, _ = dot_import(sys.modules["builtins"], None, name)

			if isinstance(parent, type):

				return sys.modules[parent.__module__], parent

			if isinstance(parent, ModuleType):

				return parent, None

	raise UnknownObject(f"unknown value for 'what': {what}")