diff --git a/src/py/mat3ra/made/tools/utils/helpers.py b/src/py/mat3ra/made/tools/utils/helpers.py
index 17e2aad8..aba85dd3 100644
--- a/src/py/mat3ra/made/tools/utils/helpers.py
+++ b/src/py/mat3ra/made/tools/utils/helpers.py
@@ -10,7 +10,6 @@
 
 
 class FunctionHolder(BaseModel):
-
     @staticmethod
     def get_function(*args, **kwargs):
         """
@@ -45,7 +44,6 @@ def get_transform_coordinates(*args, **kwargs):
 
 
 class SineWave(FunctionHolder):
-
     @staticmethod
     def get_function(
         w: float, amplitude: float, wavelength: float, phase: float