optimize imports

caldav/davclient.py

@@ -6,39 +6,29 @@
 from types import TracebackType
 from typing import Optional
 from typing import Union
-from urllib.parse import ParseResult
-from urllib.parse import SplitResult
 from urllib.parse import unquote
 
 import requests
 import typing_extensions
-from caldav.elements import cdav
 from caldav.elements import dav
-from caldav.elements import ical
 from caldav.lib import error
 from caldav.lib.python_utilities import to_normal_str
-from caldav.lib.python_utilities import to_unicode
 from caldav.lib.python_utilities import to_wire
 from caldav.lib.url import URL
 from caldav.objects import Calendar
-from caldav.objects import errmsg
 from caldav.objects import log
 from caldav.objects import Principal
-from caldav.objects import ScheduleInbox
-from caldav.objects import ScheduleOutbox
 from caldav.requests import HTTPBearerAuth
 from lxml import etree
 from lxml.etree import _Element
 from requests.auth import AuthBase
 from requests.models import Response
 from requests.structures import CaseInsensitiveDict
-from typing_extensions import Self
-from typing_extensions import TypeAlias
 
 from .elements.base import BaseElement
 
 if typing.TYPE_CHECKING:
-    from caldav.objects import DAVObject
+    pass
 
 if sys.version_info < (3, 9):
     from typing import Iterable, Mapping