foo/bar/OneSealedChild
class OneSealedChild : foo.bar.MySealedInterface

foo/bar/ThreeSealedChild
class ThreeSealedChild : foo.bar.T2 /* = foo.bar.MySealedInterface */

foo/bar/TwoSealedChild
class TwoSealedChild : foo.bar.T1 /* = foo.bar.MySealedInterface */