add proxy for the first part and try to develop the second part

Webcal-python/venv/lib/python3.11/site-packages/dateutil-stubs/parser/isoparser.pyi

@@ -0,0 +1,17 @@
+from _typeshed import SupportsRead
+from datetime import date, datetime, time, tzinfo
+from typing_extensions import TypeAlias
+
+_Readable: TypeAlias = SupportsRead[str | bytes]
+_TakesAscii: TypeAlias = str | bytes | _Readable
+
+__all__ = ["isoparse", "isoparser"]
+
+class isoparser:
+    def __init__(self, sep: str | bytes | None = None): ...
+    def isoparse(self, dt_str: _TakesAscii) -> datetime: ...
+    def parse_isodate(self, datestr: _TakesAscii) -> date: ...
+    def parse_isotime(self, timestr: _TakesAscii) -> time: ...
+    def parse_tzstr(self, tzstr: _TakesAscii, zero_as_utc: bool = True) -> tzinfo: ...
+
+def isoparse(dt_str: _TakesAscii) -> datetime: ...