如何为Bokeh回调过滤器的一部分编写Javascript代码，以便我可以同时按数字和类别进行过滤？

// 定义回调函数
function callback_func(filter_num, filter_category) {
    // 获取所有数据源
    var source = Bokeh.documents[0].get_model_by_name('source');

    // 进行数据过滤
    source.data = {
        'x': source.data['x'].filter(function(value, index) {
            return value > filter_num;  // 根据数字进行过滤
        }),
        'category': source.data['category'].filter(function(value, index) {
            return value == filter_category;  // 根据类别进行过滤
        })
    };
}

// 将回调函数绑定到过滤器上
var filter_num = document.getElementById('filter_num');
var filter_category = document.getElementById('filter_category');

filter_num.addEventListener('change', function() {
    callback_func(parseInt(filter_num.value), filter_category.value);
});

filter_category.addEventListener('change', function() {
    callback_func(parseInt(filter_num.value), filter_category.value);
});