Introduce flake8 return

arkindex/documents/api/ml.py

arkindex/documents/dates.py

arkindex/documents/serializers/elements.py

arkindex/documents/serializers/entities.py

arkindex/documents/tests/test_edit_elementpath.py

arkindex/images/managers.py

arkindex/images/models.py

arkindex/images/serializers.py

arkindex/process/api.py

arkindex/process/models.py

arkindex/process/serializers/imports.py

arkindex/project/argparse.py

arkindex/project/serializer_fields.py

arkindex/project/tests/test_config.py

arkindex/training/admin.py

arkindex/training/api.py

arkindex/training/management/commands/migrate_workers.py

arkindex/users/api.py

ruff.toml