style patterns

lib/errors/mape/Mape.Tests.cs

@@ -320,8 +320,15 @@ public class MapeTests
         var actual = new TSeries();
         var predicted = new TSeries();
 
-        for (int i = 0; i < 10; i++) actual.Add(DateTime.UtcNow, i + 1);
-        for (int i = 0; i < 5; i++) predicted.Add(DateTime.UtcNow, i + 1);
+        for (int i = 0; i < 10; i++)
+        {
+            actual.Add(DateTime.UtcNow, i + 1);
+        }
+
+        for (int i = 0; i < 5; i++)
+        {
+            predicted.Add(DateTime.UtcNow, i + 1);
+        }
 
         Assert.Throws<ArgumentException>(() => Mape.Calculate(actual, predicted, 3));
     }
@@ -386,4 +393,4 @@ public class MapeTests
         // Over-prediction should have higher MAPE due to smaller denominator
         Assert.True(overPrediction.Value > underPrediction.Value);
     }
-}
+}

lib/errors/mape/Mape.cs

@@ -52,7 +52,10 @@ public sealed class Mape : BiInputIndicatorBase
         ValidateBatchInputs(actual, predicted, output, period);
 
         int len = actual.Length;
-        if (len == 0) return;
+        if (len == 0)
+        {
+            return;
+        }
 
         const int StackAllocThreshold = 256;
         Span<double> percentErrors = len <= StackAllocThreshold
@@ -62,4 +65,4 @@ public sealed class Mape : BiInputIndicatorBase
         ErrorHelpers.ComputePercentageErrors(actual, predicted, percentErrors, Epsilon);
         ErrorHelpers.ApplyRollingMean(percentErrors, output, period);
     }
-}
+}