diff --git a/src/nhssynth/cli/common_arguments.py b/src/nhssynth/cli/common_arguments.py
index 696b80f1..8319c33d 100644
--- a/src/nhssynth/cli/common_arguments.py
+++ b/src/nhssynth/cli/common_arguments.py
@@ -3,6 +3,7 @@
  - All module argument lists, e.g. --dataset, --seed, etc.
  - A subset of module(s) argument lists, e.g. --synthetic, --typed, etc.
 """
+
 import argparse
 from typing import Final
 
@@ -67,7 +68,9 @@ def get_seed_parser(overrides=False) -> argparse.ArgumentParser:
     return parser
 
 
-COMMON_TITLE: Final = "starting any of the following args with `_` defaults to a suffix on DATASET (e.g. `_metadata` -> `<DATASET>_metadata`);\nall filenames are relative to `experiments/<EXPERIMENT_NAME>/` unless otherwise stated"
+COMMON_TITLE: Final = (
+    "starting any of the following args with `_` defaults to a suffix on DATASET (e.g. `_metadata` -> `<DATASET>_metadata`);\nall filenames are relative to `experiments/<EXPERIMENT_NAME>/` unless otherwise stated"
+)
 
 
 def suffix_parser_generator(name: str, help: str, required: bool = False) -> argparse.ArgumentParser:
diff --git a/src/nhssynth/cli/config.py b/src/nhssynth/cli/config.py
index 7b95a176..fbc063e6 100644
--- a/src/nhssynth/cli/config.py
+++ b/src/nhssynth/cli/config.py
@@ -1,4 +1,5 @@
 """Read, write and process config files, including handling of module-specific / common config overrides."""
+
 import argparse
 import warnings
 from importlib.metadata import version as ver
diff --git a/src/nhssynth/cli/model_arguments.py b/src/nhssynth/cli/model_arguments.py
index add457e3..fd864b76 100644
--- a/src/nhssynth/cli/model_arguments.py
+++ b/src/nhssynth/cli/model_arguments.py
@@ -1,4 +1,5 @@
 """Define arguments for each of the model classes."""
+
 import argparse
 
 from nhssynth.common.constants import ACTIVATION_FUNCTIONS
diff --git a/src/nhssynth/cli/module_arguments.py b/src/nhssynth/cli/module_arguments.py
index 3398548c..d57e9ecb 100644
--- a/src/nhssynth/cli/module_arguments.py
+++ b/src/nhssynth/cli/module_arguments.py
@@ -1,4 +1,5 @@
 """Define arguments for each of the modules' CLI sub-parsers."""
+
 import argparse
 
 from nhssynth.cli.model_arguments import add_model_specific_args
diff --git a/src/nhssynth/cli/module_setup.py b/src/nhssynth/cli/module_setup.py
index 500cbb2a..1e139a81 100644
--- a/src/nhssynth/cli/module_setup.py
+++ b/src/nhssynth/cli/module_setup.py
@@ -1,4 +1,5 @@
 """Specify all CLI-accessible modules and their configurations, the pipeline to run by default, and define special functions for the `config` and `pipeline` CLI option trees."""
+
 import argparse
 from typing import Callable, Final, Optional
 
diff --git a/src/nhssynth/common/common.py b/src/nhssynth/common/common.py
index 5127388d..c4c4f9ce 100644
--- a/src/nhssynth/common/common.py
+++ b/src/nhssynth/common/common.py
@@ -1,4 +1,5 @@
 """Common functions for all modules."""
+
 import random
 from typing import Optional
 
diff --git a/src/nhssynth/common/constants.py b/src/nhssynth/common/constants.py
index cce5b57a..7c33d07a 100644
--- a/src/nhssynth/common/constants.py
+++ b/src/nhssynth/common/constants.py
@@ -1,4 +1,5 @@
 """Define all of the common constants used throughout the project."""
+
 from time import strftime
 from typing import Final
 
diff --git a/src/nhssynth/common/debugging.py b/src/nhssynth/common/debugging.py
index bdf77825..a59e6740 100644
--- a/src/nhssynth/common/debugging.py
+++ b/src/nhssynth/common/debugging.py
@@ -1,4 +1,5 @@
 """Debugging utilities."""
+
 import sys
 import traceback
 import warnings
diff --git a/src/nhssynth/common/dicts.py b/src/nhssynth/common/dicts.py
index 3bdae0a8..e8668941 100644
--- a/src/nhssynth/common/dicts.py
+++ b/src/nhssynth/common/dicts.py
@@ -1,4 +1,5 @@
 """Common functions for working with dictionaries."""
+
 from typing import Any, Union
 
 
diff --git a/src/nhssynth/common/io.py b/src/nhssynth/common/io.py
index 25d441e7..20e4a56c 100644
--- a/src/nhssynth/common/io.py
+++ b/src/nhssynth/common/io.py
@@ -1,4 +1,5 @@
 """Common building-block functions for handling module input and output."""
+
 import warnings
 from pathlib import Path
 from typing import Union
diff --git a/src/nhssynth/common/strings.py b/src/nhssynth/common/strings.py
index fcded9e9..4f6f1b51 100644
--- a/src/nhssynth/common/strings.py
+++ b/src/nhssynth/common/strings.py
@@ -1,4 +1,5 @@
 """String manipulation functions."""
+
 import datetime
 import re
 
diff --git a/src/nhssynth/modules/dataloader/metadata.py b/src/nhssynth/modules/dataloader/metadata.py
index 4048562c..12bc2bc4 100644
--- a/src/nhssynth/modules/dataloader/metadata.py
+++ b/src/nhssynth/modules/dataloader/metadata.py
@@ -250,9 +250,11 @@ def _assemble(self, collapse_yaml: bool) -> dict[str, dict[str, Any]]:
         assembled_metadata = {
             "columns": {
                 cn: {
-                    "dtype": cmd.dtype.name
-                    if not hasattr(cmd, "datetime_config")
-                    else {"name": cmd.dtype.name, **cmd.datetime_config},
+                    "dtype": (
+                        cmd.dtype.name
+                        if not hasattr(cmd, "datetime_config")
+                        else {"name": cmd.dtype.name, **cmd.datetime_config}
+                    ),
                     "categorical": cmd.categorical,
                 }
                 for cn, cmd in self._metadata.items()
@@ -316,13 +318,11 @@ def get_sdv_metadata(self) -> dict[str, dict[str, dict[str, str]]]:
         sdv_metadata = {
             "columns": {
                 cn: {
-                    "sdtype": "boolean"
-                    if cmd.boolean
-                    else "categorical"
-                    if cmd.categorical
-                    else "datetime"
-                    if cmd.dtype.kind == "M"
-                    else "numerical",
+                    "sdtype": (
+                        "boolean"
+                        if cmd.boolean
+                        else "categorical" if cmd.categorical else "datetime" if cmd.dtype.kind == "M" else "numerical"
+                    ),
                 }
                 for cn, cmd in self._metadata.items()
             }