diff --git a/attune/_tune.py b/attune/_tune.py
index fa5160a..bdc7611 100644
--- a/attune/_tune.py
+++ b/attune/_tune.py
@@ -117,4 +117,3 @@ def monotonic(self) -> bool:
         """Whether or not the dependent variable moves monotonically."""
         checks = np.gradient(self.dependent) <= 0
         return checks.all() or (not checks.any())
-