Reformat stopping.py.

Author: Markus Semmler

src/pydvl/value/stopping.py

@@ -554,12 +554,11 @@ def completion(self) -> float:
 
     def reset(self):
         self.start = time()
-      
+
     def __str__(self):
         return f"MaxTime(seconds={self.max_seconds})"
 
 
-
 class HistoryDeviation(StoppingCriterion):
     r"""A simple check for relative distance to a previous step in the
     computation.