test (typing): Add tests for typing.

Add tests for the typing module.

tests/typing/__init__.py

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+"""Test directory for the typing module."""

tests/typing/test_typing.py

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+"""The test suite for the typing module.
+
+As the typing module only contains types, the tests only check imports.
+"""
+# ruff: noqa: F401
+
+import pytest
+
+
+def test_analysis_types() -> None:
+    """Test the analysis types."""
+    try:
+        from stimulus.typing import Analysis, AnalysisPerformanceTune, AnalysisRobustness
+    except ImportError:
+        pytest.fail("Failed to import Analysis types")
+
+
+def test_data_handlers_types() -> None:
+    """Test the data handlers types."""
+    try:
+        from stimulus.typing import (
+            DatasetHandler,
+            DatasetLoader,
+            DatasetManager,
+            DatasetProcessor,
+            EncodeManager,
+            SplitManager,
+            TransformManager,
+        )
+    except ImportError:
+        pytest.fail("Failed to import Data Handlers types")
+
+
+def test_learner_types() -> None:
+    """Test the learner types."""
+    try:
+        from stimulus.typing import (
+            PredictWrapper,
+            RayTuneMetrics,
+            RayTuneOptimizer,
+            RayTuneResult,
+            TuneModel,
+            TuneParser,
+            TuneWrapper,
+        )
+    except ImportError:
+        pytest.fail("Failed to import Learner types")
+
+
+def test_yaml_data_types() -> None:
+    """Test the YAML data types."""
+    try:
+        from stimulus.typing import (
+            YamlColumns,
+            YamlColumnsEncoder,
+            YamlConfigDict,
+            YamlGlobalParams,
+            YamlSchema,
+            YamlSplit,
+            YamlSubConfigDict,
+            YamlTransform,
+            YamlTransformColumns,
+            YamlTransformColumnsTransformation,
+        )
+    except ImportError:
+        pytest.fail("Failed to import YAML Data types")
+
+
+def test_yaml_model_schema_types() -> None:
+    """Test the YAML model schema types."""
+    try:
+        from stimulus.typing import (
+            CustomTunableParameter,
+            Data,
+            Loss,
+            Model,
+            RayTuneModel,
+            RunParams,
+            Scheduler,
+            TunableParameter,
+            Tune,
+            TuneParams,
+            YamlRayConfigLoader,
+        )
+    except ImportError:
+        pytest.fail("Failed to import YAML Model Schema types")
+
+
+def test_type_aliases() -> None:
+    """Test the type aliases."""
+    try:
+        from stimulus.typing import DataManager, Loader, RayTuneData, YamlData
+    except ImportError:
+        pytest.fail("Failed to import Type Aliases")