import { ChannelId } from '@statechannels/client-api-schema';
import { EngineError, Values } from '../errors/engine-error';
export interface JoinChannelHandlerParams {
    channelId: ChannelId;
}
export declare class JoinChannelError extends EngineError {
    readonly data: any;
    readonly type: "JoinChannelError";
    static readonly reasons: {
        readonly channelNotFound: "channel not found";
        readonly invalidTurnNum: "latest state must be turn 0";
        readonly alreadySignedByMe: "already signed prefund setup";
    };
    constructor(reason: Values<typeof JoinChannelError.reasons>, data?: any);
}
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