def push_ns(self, name):
        self.namespace.append(name)
        return name
Gets the downHovering face of the button.
dataset/ETHPy150Open Evgenus/protocyt/protocyt/classes.py/State.push_ns--crossover with--dataset/ETHPy150Open anandology/pyjamas/library/pyjamas/ui/CustomButton.py/CustomButton.getDownHoveringFace