Modernize typing imports to use collections.abc (PEP 585)

Move Callable, Sequence, Generator, Iterable, Iterator, and AsyncIterable
imports from typing to collections.abc per PEP 585. These typing aliases
have been deprecated for runtime use since Python 3.9 in favor of the
collections.abc originals, and the project floor is Python 3.10.

No behavior change. Affected files:
- durabletask/client.py
- durabletask/task.py
- durabletask/worker.py
- durabletask/testing/in_memory_backend.py
- durabletask/internal/client_helpers.py
- durabletask/internal/grpc_interceptor.py
- durabletask/internal/grpc_resiliency.py
- durabletask/internal/history_helpers.py
- durabletask/internal/orchestration_entity_context.py
- durabletask/internal/proto_task_hub_sidecar_service_stub.py

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: Bernd Verst

durabletask/client.py

@@ -6,11 +6,11 @@
 import threading
 import time
 import uuid
-from collections.abc import AsyncIterable, Iterable
+from collections.abc import AsyncIterable, Iterable, Sequence
 from dataclasses import dataclass
 from datetime import datetime
 from enum import Enum
-from typing import Any, Generic, Protocol, Sequence, TypeVar, cast
+from typing import Any, Generic, Protocol, TypeVar, cast
 
 import grpc
 import grpc.aio

durabletask/internal/client_helpers.py

@@ -5,8 +5,9 @@
 
 import logging
 import uuid
+from collections.abc import Sequence
 from datetime import datetime, timezone
-from typing import TYPE_CHECKING, Any, Sequence, TypeVar
+from typing import TYPE_CHECKING, Any, TypeVar
 
 from google.protobuf import wrappers_pb2
 

durabletask/internal/grpc_interceptor.py

@@ -1,8 +1,8 @@
 # Copyright (c) Microsoft Corporation.
 # Licensed under the MIT License.
 
-from collections.abc import Iterable, Sequence
-from typing import Any, Callable, NamedTuple, cast
+from collections.abc import Callable, Iterable, Sequence
+from typing import Any, NamedTuple, cast
 
 import grpc
 import grpc.aio

durabletask/internal/grpc_resiliency.py

@@ -3,8 +3,9 @@
 
 import random
 import threading
+from collections.abc import Callable
 from dataclasses import dataclass, field
-from typing import Any, Callable
+from typing import Any
 
 import grpc
 import grpc.aio

durabletask/internal/history_helpers.py

@@ -3,8 +3,7 @@
 
 from __future__ import annotations
 
-from typing import AsyncIterable, Iterable
-
+from collections.abc import AsyncIterable, Iterable
 from typing import Any
 
 import durabletask.history as history

durabletask/internal/orchestration_entity_context.py

@@ -1,5 +1,6 @@
+from collections.abc import Generator
 from datetime import datetime
-from typing import Any, Generator
+from typing import Any
 
 from durabletask.internal.helpers import get_string_value
 import durabletask.internal.orchestrator_service_pb2 as pb

durabletask/internal/proto_task_hub_sidecar_service_stub.py

@@ -1,4 +1,5 @@
-from typing import Any, Callable, Protocol
+from collections.abc import Callable
+from typing import Any, Protocol
 
 
 class ProtoTaskHubSidecarServiceStub(Protocol):

durabletask/task.py

@@ -7,8 +7,9 @@
 import logging
 import math
 from abc import ABC, abstractmethod
+from collections.abc import Callable, Generator, Sequence
 from datetime import datetime, timedelta, timezone
-from typing import TYPE_CHECKING, Any, Callable, Generator, Generic, Sequence, TypeAlias, TypeVar, cast
+from typing import TYPE_CHECKING, Any, Generic, TypeAlias, TypeVar, cast
 
 from durabletask.entities import DurableEntity, EntityInstanceId, EntityLock, EntityContext
 import durabletask.internal.helpers as pbh

durabletask/testing/in_memory_backend.py

@@ -16,9 +16,10 @@
 import time
 import uuid
 from collections import deque
+from collections.abc import Callable, Iterable, Iterator
 from dataclasses import dataclass, field
 from datetime import datetime, timezone
-from typing import Callable, Iterable, Iterator, TypeAlias, cast
+from typing import TypeAlias, cast
 
 import grpc
 from concurrent import futures

durabletask/worker.py

@@ -7,13 +7,14 @@
 import logging
 import os
 import time
+from collections.abc import Callable, Generator, Sequence
 from concurrent.futures import ThreadPoolExecutor
 from dataclasses import dataclass, field
 from datetime import datetime, timedelta, timezone
 from threading import Event, Lock, Thread
 from types import GeneratorType
 from enum import Enum
-from typing import Any, Callable, Generator, Sequence, TypeVar, cast, overload
+from typing import Any, TypeVar, cast, overload
 import uuid
 from packaging.version import InvalidVersion, parse