import type { ILogItem } from "../../../logging/types";
import type { StateEvent } from "../../storage/types";
import type { Transaction } from "../../storage/idb/Transaction";
import type { Room } from "../Room";
import type { MemberChange } from "../members/RoomMember";
import type { RoomStateHandler } from "./types";
import type { MemberSync } from "../timeline/persistence/MemberWriter.js";
import { BaseObservable } from "../../../observable/BaseObservable";
/** keeps track of all handlers registered with Session.observeRoomState */
export declare class RoomStateHandlerSet extends BaseObservable<RoomStateHandler> implements RoomStateHandler {
    handleRoomState(room: Room, stateEvent: StateEvent, memberSync: MemberSync, txn: Transaction, log: ILogItem): Promise<void>;
    updateRoomMembers(room: Room, memberChanges: Map<string, MemberChange>): void;
}