def METHOD_NAME(self, request):
    n_sys = request.param
    sys_coll_with_dampers = self.SystemCollectionWithDampingMixedin()
    for i_sys in range(n_sys):
        sys_coll_with_dampers.append(self.MockRod(2, 3, 4, 5))
    return sys_coll_with_dampers