Reinstall mypy

I accidentally removed mypy when I installed ruff, but ruff is not a type checker.
I will reinstall mypy.

https://docs.astral.sh/ruff/faq/#how-does-ruff-compare-to-mypy-or-pyright-or-pyre

pyproject.toml

@@ -19,6 +19,7 @@ pytest-cov = "*"
 poethepoet = "*"
 setuptools-scm = "*"
 build = "*"
+mypy = "*"
 
 [build-system]
 requires = ["setuptools", "setuptools_scm"]
@@ -31,19 +32,15 @@ write_to = "timeout_iterator/_version.py"
 test = "pytest"
 coverage-xml = "pytest --cov=timeout_iterator --doctest-modules --cov-report=xml"
 format = "ruff format timeout_iterator tests"
-check = "ruff check timeout_iterator tests"
+check = [
+    { cmd = "ruff check timeout_iterator tests" },
+    { cmd = "mypy timeout_iterator tests" },
+]
 build = "python -m build"
 
 [tool.mypy]
-warn_return_any = true
-warn_unused_configs = true
-disallow_untyped_defs = true
+strict = true
 ignore_missing_imports = false
 
-[tool.mypy-tests."*"]
-disallow_untyped_defs = false
-warn_return_any = false
-ignore_missing_imports = true
-
 [tool.ruff]
 line-length = 79

timeout_iterator/terminate.py

@@ -1,11 +1,15 @@
 from collections.abc import Iterable
+from typing import TypeVar
 import datetime
 import signal
 
 
+T = TypeVar("T")
+
+
 # NOTE: float type accepts int
 # https://peps.python.org/pep-0484/#the-numeric-tower
-def terminate(iterable: Iterable, seconds: float) -> Iterable:
+def terminate(iterable: Iterable[T], seconds: float) -> Iterable[T]:
     """Timeout iterator
 
     This iterator forcibly terminates a running task after the specified number of seconds.

timeout_iterator/without_terminate.py

@@ -1,10 +1,14 @@
 from collections.abc import Iterable
+from typing import TypeVar
 import datetime
 
 
+T = TypeVar("T")
+
+
 # NOTE: float type accepts int
 # https://peps.python.org/pep-0484/#the-numeric-tower
-def without_terminate(iterable: Iterable, seconds: float) -> Iterable:
+def without_terminate(iterable: Iterable[T], seconds: float) -> Iterable[T]:
     """Timeout iterator
 
     This iterator times out after the specified number of seconds.