Ember computed property _super

I'd like to know if there is a way to get the _super for a computed property?

For example:

controllers/core-controller.js

export default Controller.extend({
    myAttribute: computed(function() {
        return {
            bar: this.get('bar')
        };
    });
});

controllers/my-controller.js

import CoreController from 'controllers/core-controller';

export default CoreController.extend({
    myAttribute: computed(function() {
        let super = this.get('_super') //I'm trying to get the myAttribute object from the CoreController
        return merge(super, { foo: 'foo' });
    });
});

What would be the best way to do that?

Thanks.