------
Escapes
------


1) \Humbug\Mutator\ReturnValue\This
Diff on \LevelUp\ValueObject::setFoo() in /Users/davidstockton/Projects/humbug_demo/src/LevelUp/ValueObject.php:
--- Original
+++ New
@@ @@
         $this->foo = $foo;
-        return $this;
+        return null;
     }
 }