diff --git a/src/pseudopeople/configuration/generator.py b/src/pseudopeople/configuration/generator.py
index 7420abb0..dde53121 100644
--- a/src/pseudopeople/configuration/generator.py
+++ b/src/pseudopeople/configuration/generator.py
@@ -226,7 +226,14 @@ def _format_misreport_age_perturbations(
         if not user_perturbations:
             continue
         formatted = {}
-        default_perturbations: dict[int, float] = default_config.get_tree(dataset_schema).get_tree(Keys.COLUMN_NOISE).get_tree("age").get_tree(NOISE_TYPES.misreport_age.name).get(Keys.POSSIBLE_AGE_DIFFERENCES).to_dict()
+        default_perturbations: dict[int, float] = (
+            default_config.get_tree(dataset_schema)
+            .get_tree(Keys.COLUMN_NOISE)
+            .get_tree("age")
+            .get_tree(NOISE_TYPES.misreport_age.name)
+            .get(Keys.POSSIBLE_AGE_DIFFERENCES)
+            .to_dict()
+        )
         # Replace default configuration with 0 probabilities
         for perturbation in default_perturbations:
             formatted[perturbation] = 0.0
diff --git a/src/pseudopeople/configuration/noise_configuration.py b/src/pseudopeople/configuration/noise_configuration.py
index 590a1d6d..4a83be2a 100644
--- a/src/pseudopeople/configuration/noise_configuration.py
+++ b/src/pseudopeople/configuration/noise_configuration.py
@@ -25,7 +25,7 @@ def __init__(self, config: LayeredConfigTree):
 
     def to_dict(self) -> dict:
         # TODO: remove ignore when dropping support for Python 3.9
-        config_dict: dict = self._config.to_dict() # type: ignore [assignment]
+        config_dict: dict = self._config.to_dict()  # type: ignore [assignment]
         return config_dict
 
     def get_value(
@@ -81,7 +81,7 @@ def get_value(
         noise_value: int | float | LayeredConfigTree = parameter_tree.get(parameter_name)
         converted_noise_value: int | float | dict = (
             # not sure how to tell mypy the types in this dict
-            noise_value.to_dict() # type: ignore [assignment]
+            noise_value.to_dict()  # type: ignore [assignment]
             if isinstance(noise_value, LayeredConfigTree)
             else noise_value
         )
diff --git a/src/pseudopeople/configuration/validator.py b/src/pseudopeople/configuration/validator.py
index 294ffabb..e3fddea3 100644
--- a/src/pseudopeople/configuration/validator.py
+++ b/src/pseudopeople/configuration/validator.py
@@ -47,8 +47,12 @@ def validate_overrides(overrides: Any, default_config: LayeredConfigTree) -> Non
                 default_dataset_config, key, "configuration key", dataset_name
             )
 
-        default_row_noise_config: LayeredConfigTree = default_dataset_config.get_tree(Keys.ROW_NOISE)
-        default_column_noise_config: LayeredConfigTree = default_dataset_config.get_tree(Keys.COLUMN_NOISE)
+        default_row_noise_config: LayeredConfigTree = default_dataset_config.get_tree(
+            Keys.ROW_NOISE
+        )
+        default_column_noise_config: LayeredConfigTree = default_dataset_config.get_tree(
+            Keys.COLUMN_NOISE
+        )
 
         row_noise_config = dataset_config.get(Keys.ROW_NOISE, {})
         if not isinstance(row_noise_config, dict):
@@ -346,9 +350,12 @@ def validate_noise_level_proportions(
                 # Note: Using pd.isnull here and above because np.isnan does not work on strings
                 if NOISE_TYPES.duplicate_with_guardian in dataset_schema.row_noise_types:
                     # Config level for guardian duplication group
-                    config_noise_level = configuration_tree.get_tree(row["dataset"]).get_tree(Keys.ROW_NOISE).get_tree(
-                        NOISE_TYPES.duplicate_with_guardian.name
-                    ).get(row["noise_type"])
+                    config_noise_level = (
+                        configuration_tree.get_tree(row["dataset"])
+                        .get_tree(Keys.ROW_NOISE)
+                        .get_tree(NOISE_TYPES.duplicate_with_guardian.name)
+                        .get(row["noise_type"])
+                    )
                     entity_type = Keys.ROW_NOISE
                 else:
                     # I have preloaded the metadata for ACS and CPS to have the duplicate with
@@ -356,9 +363,13 @@ def validate_noise_level_proportions(
                     continue
             else:
                 # Config level for each column noise type
-                config_noise_level = configuration_tree.get_tree(row["dataset"]).get_tree(Keys.COLUMN_NOISE).get_tree(
-                    row["column"]
-                ).get_tree(row["noise_type"]).get(Keys.CELL_PROBABILITY)
+                config_noise_level = (
+                    configuration_tree.get_tree(row["dataset"])
+                    .get_tree(Keys.COLUMN_NOISE)
+                    .get_tree(row["column"])
+                    .get_tree(row["noise_type"])
+                    .get(Keys.CELL_PROBABILITY)
+                )
                 entity_type = Keys.COLUMN_NOISE
             max_noise_level = row["proportion"]
             if config_noise_level > max_noise_level: