import type { SlackBridgeSettings } from "./helpers.js";
export type SlackBridgeRuntimeMode = "off" | "single" | "broker" | "follower";
export declare function normalizeSlackBridgeRuntimeMode(value: string | null | undefined): SlackBridgeRuntimeMode | null;
export declare function isPinetRuntimeMode(mode: SlackBridgeRuntimeMode): boolean;
export interface ResolveSlackBridgeStartupRuntimeModeOptions {
    brokerSocketExists?: boolean;
    brokerManagedFollowerLaunch?: boolean;
}
export declare function isBrokerManagedFollowerLaunch(env?: NodeJS.ProcessEnv): boolean;
export declare function resolveSlackBridgeStartupRuntimeMode(settings: Pick<SlackBridgeSettings, "runtimeMode" | "autoConnect" | "autoFollow">, options?: ResolveSlackBridgeStartupRuntimeModeOptions): SlackBridgeRuntimeMode;