pub type CVLsJacFnBS = Option<unsafe extern "C" fn(t: realtype, y: N_Vector, yS: *mut N_Vector, yB: N_Vector, fyB: N_Vector, JB: SUNMatrix, user_dataB: *mut c_void, tmp1B: N_Vector, tmp2B: N_Vector, tmp3B: N_Vector) -> c_int>;