import type { SlackMonitorContext } from "../context.js";
export type SlackEventAuthor = {
    user?: string | null;
};
export declare function isSlackEventFromSelf(ctx: SlackMonitorContext, userId?: string | null): boolean;
export declare function hasSlackSelfAuthor(ctx: SlackMonitorContext, ...authors: Array<SlackEventAuthor | null | undefined>): boolean;