-mkMiddles :: [m] -> AGraph m l
-mkZTail :: (Outputable m, Outputable l, LastNode l) => ZTail m l -> AGraph m l
-mkBranch :: (Outputable m, Outputable l, LastNode l) => BlockId -> AGraph m l
+mkMiddles :: [m] -> AGraph m l
+mkZTail :: (Outputable m, Outputable l, LastNode l) =>
+ ZTail m l -> AGraph m l
+mkBranch :: (Outputable m, Outputable l, LastNode l) =>
+ BlockId -> AGraph m l