INTERFACE StubImageVBT; IMPORT PaintOp, VBT; IMPORT StubImages AS Images; TYPE T <: Public; TYPE Public = VBT.Leaf OBJECT METHODS init(pm: Images.T; bg: PaintOp.T): T; put(pm: Images.T; bg: PaintOp.T); get(): Images.T; END; END StubImageVBT.