import type { SlackMonitorContext } from "../context.js";
export type SlackSystemEventHandler = (args: {
    event: Record<string, unknown>;
    body: unknown;
}) => Promise<void>;
export type SlackSystemEventTestOverrides = {
    dmPolicy?: "open" | "pairing" | "allowlist" | "disabled";
    allowFrom?: string[];
    channelType?: "im" | "channel";
    channelUsers?: string[];
};
export declare function createSlackSystemEventTestHarness(overrides?: SlackSystemEventTestOverrides): {
    ctx: SlackMonitorContext;
    getHandler(name: string): SlackSystemEventHandler | null;
};