setup(...args) {
    super.setup(args)
    useBus(this.env.bus, "product_selected", () =>
        this.commitChanges({urgent: true})
    );

}

error:
point_of_sale\.assets\.min\.js:678\ TypeError:\ useBus\ is\ not\ a\ function

 \  \ at\ ProductItemInherit\.setup\ \(point_of_sale\.assets\.min\.js:5424:1\)

 \  \ at\ new\ ComponentNode\ \(web\.assets_common\.min\.js:1558:202\)

 \  \ at\ web\.assets_common\.min\.js:2096:6

 \  \ at\ ProductsWidget\.template\ \(eval\ at\ compile\ \(web\.assets_common\.min\.js:2056:374\),\ :25:32\)

 \  \ at\ node\.renderFn\ \(web\.assets_common\.min\.js:1614:207\)

 \  \ at\ Fiber\._render\ \(web\.assets_common\.min\.js:1496:96\)

 \  \ at\ Fiber\.render\ \(web\.assets_common\.min\.js:1495:6\)

 \  \ at\ ComponentNode\.initiateRender\ \(web.assets_common.min.js:1563:47)