@visactor/vrender-core/es/event/event-target.js

```typescript import { xxx } from '@visactor/vrender-core'; ```

import { FederatedEvent, CustomEvent } from "./federated-event";

export const EventTarget = {
    dispatchEvent(e) {
        var _a;
        if (!(e instanceof FederatedEvent)) throw new Error("DisplayObject cannot propagate events outside of the Federated Events API");
        return e.defaultPrevented = !1, e.path = [], e.detailPath && (e.detailPath = []), 
        e.target = this, null === (_a = null == e ? void 0 : e.manager) || void 0 === _a || _a.dispatchEvent(e), 
        !e.defaultPrevented;
    },
    emit(eventName, object) {
        return this.dispatchEvent(new CustomEvent(eventName, object));
    }
};
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