def METHOD_NAME(self):
    METHOD_NAME = Block(concrete=True)
    METHOD_NAME.x = Var(bounds=(1e-8, None), initialize=1e-7)
    METHOD_NAME.y = Var(bounds=(1e1, 1e2), initialize=1e3)
    METHOD_NAME.z = Var(bounds=(0.0, 1e-8), initialize=1e-20)
    METHOD_NAME.z.fix()
    METHOD_NAME.w = Var(bounds=(None, 1), initialize=0.5)
    return METHOD_NAME