export interface Postable<T> {
    /** https://docs.evt.land/api/evt/post */
    postAsyncOnceHandled(data: T): number | Promise<number>;
    /**
     * Returns post count
     * */
    post(data: T): number;
    /**
     * Post and wait for all async handler's callbacks have resolved.
     *
     * https://docs.evt.land/api/evt/post#evt-postandwait-data-promise-less-than-void-greater-than
     */
    postAndWait(data: T): Promise<void>;
}