def METHOD_NAME(ivp, steprule_small, prior_iwp, diffusion_model):
    return diffeq.odefilter.ODEFilter(
        steprule=steprule_small,
        prior_process=prior_iwp,
        diffusion_model=diffusion_model,
        init_routine=diffeq.odefilter.init_routines.Stack(),
        with_smoothing=False,
    )