docs: update documentation files and fix linting issues

tests/quality/test_api_exchange.py

@@ -18,15 +18,20 @@ class TestExchangeAPI:
         result = ex(np.array([2.0]))
         assert isinstance(result, np.ndarray)
 
+
 class TestExchangeProperties:
     @pytest.mark.property
-    @pytest.mark.parametrize("W", [
-        [2.0],
-        np.linspace(1.01, 6.0, 50),
-    ])
+    @pytest.mark.parametrize(
+        "W",
+        [
+            [2.0],
+            np.linspace(1.01, 6.0, 50),
+        ],
+    )
     def test_positive(self, W):
         ex = ExchangeCorrection(Z=92)
         from tests.common.test_property_tests import _test_positive_values
+
         _test_positive_values(ex, W, component_name="ExchangeCorrection")
 
     @pytest.mark.quality
@@ -35,13 +40,18 @@ class TestExchangeProperties:
         ex = ExchangeCorrection(Z=30)
         W = np.linspace(1.1, 3.0, n)
         from tests.common.test_property_tests import _test_output_shape_preserved
+
         _test_output_shape_preserved(ex, W, component_name="ExchangeCorrection")
 
     @pytest.mark.quality
-    @pytest.mark.parametrize("W", [
-        np.linspace(1.01, 6.0, 50),
-    ])
+    @pytest.mark.parametrize(
+        "W",
+        [
+            np.linspace(1.01, 6.0, 50),
+        ],
+    )
     def test_no_nan(self, W):
         ex = ExchangeCorrection(Z=92)
         from tests.common.test_property_tests import _test_no_nan_across_range
+
         _test_no_nan_across_range(ex, W, component_name="ExchangeCorrection")