Update skeleton_metric.py

Author: anna-grim

src/segmentation_skeleton_metrics/skeleton_metric.py

@@ -4,7 +4,6 @@
 @author: Anna Grim
 @email: [email protected]
 
-
 Implementation of class that computes skeleton-based metrics by comparing a
 predicted neuron segmentation to a set of ground truth graphs.
 
@@ -736,3 +735,4 @@ def to_local_voxels(self, key, i, offset):
         voxel = np.array(self.graphs[key].voxels[i])
         offset = np.array(offset)
         return tuple(voxel - offset)
+