Removed random blank lines
@@ -140,8 +140,6 @@ def walk(img, st_point, stride=1, maxsteps=None):
steps += 1
coords[step] = [z, y, x]
free_coords[step] = [z_free, y_free, x_free]
-
-
paths = (coords[:steps+1:stride, :], free_coords[:steps+1:stride, :])
return paths
