MLIA-386 Simplify typing in the source code

- Enable deferred annotations evaluation
- Use builtin types for type hints whenever possible
- Use | syntax for union types
- Rename mlia.core._typing into mlia.core.typing

Change-Id: I3f6ffc02fa069c589bdd9e8bddbccd504285427a

1 files changed, 5 insertions, 7 deletions

diff --git a/tests/test_backend_system.py b/tests/test_backend_system.py
index 13347c6..7a8b1de 100644
--- a/tests/test_backend_system.py
+++ b/tests/test_backend_system.py
@@ -1,14 +1,12 @@
 # SPDX-FileCopyrightText: Copyright 2022, Arm Limited and/or its affiliates.
 # SPDX-License-Identifier: Apache-2.0
 """Tests for system backend."""
+from __future__ import annotations
+
 from contextlib import ExitStack as does_not_raise
 from pathlib import Path
 from typing import Any
 from typing import Callable
-from typing import Dict
-from typing import List
-from typing import Optional
-from typing import Tuple
 from unittest.mock import MagicMock
 
 import pytest
@@ -27,12 +25,12 @@ from mlia.backend.system import System
 
 
 def dummy_resolver(
-    values: Optional[Dict[str, str]] = None
-) -> Callable[[str, str, List[Tuple[Optional[str], Param]]], str]:
+    values: dict[str, str] | None = None
+) -> Callable[[str, str, list[tuple[str | None, Param]]], str]:
     """Return dummy parameter resolver implementation."""
     # pylint: disable=unused-argument
     def resolver(
-        param: str, cmd: str, param_values: List[Tuple[Optional[str], Param]]
+        param: str, cmd: str, param_values: list[tuple[str | None, Param]]
     ) -> str:
         """Implement dummy parameter resolver."""
         return values.get(param, "") if values else ""