Python: [BREAKING]: Introducing Options as TypedDict and Generic (#3140)

* WIP typeddict for options

* updated all clients and ChatAgents

* updated everything

* added ADR

* fix mypy

* proper typevar imports

* fixed import

* fixed other imports

* slight update in the sample

* updated from feedback

* fixes

* fixed missing covariants and test fixes

* fixed typing

* updated anthropic thinking config

* ruff fixes

* fixed int tests

* fix tests and mypy

* updated integration tests

* updated docstring and test fix

* improved options handling in obser

* mypy fix

* updated a host of integration tests

* fix tests

* bedrock fix

python/packages/declarative/agent_framework_declarative/_models.py

@@ -1,6 +1,5 @@
 # Copyright (c) Microsoft. All rights reserved.
 import os
-import sys
 from collections.abc import MutableMapping
 from contextvars import ContextVar
 from typing import Any, Literal, TypeVar, Union
@@ -17,10 +16,7 @@ except (ImportError, RuntimeError):
     # RuntimeError: .NET runtime not available or misconfigured
     engine = None
 
-if sys.version_info >= (3, 11):
-    from typing import overload  # pragma: no cover
-else:
-    from typing_extensions import overload  # pragma: no cover
+from typing import overload
 
 logger = get_logger("agent_framework.declarative")