import { LeaderNode } from '@local-logic/channel';
/**
 * Allows for state management outside of a React application
 */
export declare class StateManager<T, C> {
    leaderNode: LeaderNode;
    defaultState: T;
    onMessageHandlers: ((event: CustomEvent) => void)[];
    isConnected: Promise<unknown>;
    private clientLock;
    constructor(defaultState: T, channelId?: string, crossOrigin?: {
        targetOrigin: string;
        window: Window;
        location?: Window["location"];
    });
    setState(callback: (prev: T) => T): Promise<void>;
    getState(): Promise<unknown>;
    onChange(callback: C): Promise<void>;
    destroy(): void;
}
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