[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

pysr/test/test_main.py

@@ -269,9 +269,7 @@ def test_elementwise_loss_wrong_signature_warns(self):
             )
 
     def test_elementwise_loss_with_weights_requires_three_args_warns(self):
-        custom_loss = jl.seval(
-            "myloss2(prediction, target) = (prediction - target)^2"
-        )
+        custom_loss = jl.seval("myloss2(prediction, target) = (prediction - target)^2")
         with self.assertWarnsRegex(UserWarning, "elementwise_loss"):
             _validate_elementwise_loss(
                 custom_loss,