diff --git a/omymodels/logic.py b/omymodels/logic.py
index 58ae027..9482fd6 100644
--- a/omymodels/logic.py
+++ b/omymodels/logic.py
@@ -1,11 +1,12 @@
 from typing import Dict, List
+
 import omymodels.types as t
 
 
 def generate_column(
     column_data: Dict, table_pk: List[str], table_data: Dict, templates, obj
 ) -> str:
-    """ method to generate full column defention for sqlalchemy & gino ORM models """
+    """method to generate full column defention for sqlalchemy & gino ORM models"""
     column_type = t.prepare_column_type_orm(obj, column_data)
     column = templates.column_template.format(
         column_name=column_data.name, column_type=column_type
@@ -53,7 +54,6 @@ def setup_column_attributes(
     if column_data.unique:
         column += templates.unique
 
-    
     return column
 
 
diff --git a/tests/functional/generator/test_gino_models.py b/tests/functional/generator/test_gino_models.py
index ae74441..ca74676 100644
--- a/tests/functional/generator/test_gino_models.py
+++ b/tests/functional/generator/test_gino_models.py
@@ -1,4 +1,5 @@
 import os
+
 from omymodels import create_models
 
 
@@ -296,7 +297,7 @@ class Products(db.Model):
     ID = db.Column(db.Integer(), primary_key=True)
     merchant_id = db.Column(db.Integer(), db.ForeignKey('merchants.id'), nullable=False)
 """
-        
+
     ddl = """
     CREATE TABLE "merchants" (
     "id" int PRIMARY KEY,
@@ -310,5 +311,5 @@ class Products(db.Model):
 
     ALTER TABLE "products" ADD FOREIGN KEY ("merchant_id") REFERENCES "merchants" ("id");
     """
-    result = create_models(ddl, models_type='gino', no_auto_snake_case=True)['code']
-    assert expected == result
\ No newline at end of file
+    result = create_models(ddl, models_type="gino", no_auto_snake_case=True)["code"]
+    assert expected == result
diff --git a/tests/functional/generator/test_sqlalchemy_core.py b/tests/functional/generator/test_sqlalchemy_core.py
index 1d4bad6..1cdd06e 100644
--- a/tests/functional/generator/test_sqlalchemy_core.py
+++ b/tests/functional/generator/test_sqlalchemy_core.py
@@ -135,5 +135,5 @@ class Products(Base):
 
     ALTER TABLE "products" ADD FOREIGN KEY ("merchant_id") REFERENCES "merchants" ("id");
     """
-    result = create_models(ddl, models_type='sqlalchemy')['code']
-    assert result == expected
\ No newline at end of file
+    result = create_models(ddl, models_type="sqlalchemy")["code"]
+    assert result == expected