tc39 babel 装饰器，有没有办法使用方法装饰器访问类？

如何解决tc39 babel 装饰器，有没有办法使用方法装饰器访问类？

使用方法装饰器时如何访问类，在其上定义一些属性？

class Test {
    @Meta
    hello() {}

    @Meta
    sayHi() {}
}

function Meta(descriptor) {
    // I want to access the Test class,assign custom config on it,// but the descriptor.finisher param only work for class decorator,// how to assign properties to the class
    // for example set Test.Meta = ['hello','sayHi'] when method hello,sayHi has this decorator
    // not on decorator legacy mode,// the descriptor is like {kind: 'method',placement: 'prototype',...}
}