interface MapSourceStorage {
    get(): Promise<unknown>;
    put(value: unknown): Promise<void>;
}
interface RoomStorage {
    storage: {
        get<T = unknown>(key: string): Promise<T | undefined>;
        put(key: string, value: unknown): Promise<void>;
    };
}
export declare function setMapSourceStorage(room: object, adapter: MapSourceStorage): void;
export declare function readMapSource(room: RoomStorage): Promise<unknown>;
export declare function writeMapSource(room: RoomStorage, value: unknown): Promise<void>;
export {};