export declare function installOrUpdateRelayRuntimeLocal(params: Readonly<{
    serverBinaryPath: string;
    channel: 'stable' | 'preview' | 'publicdev';
    mode: 'user' | 'system';
    env?: Record<string, string>;
    platform?: NodeJS.Platform;
    homeDir?: string;
    arch?: string;
    version?: string | null;
    runServiceCommands?: boolean;
    skipHealthCheck?: boolean;
}>): Promise<Readonly<{
    baseUrl: string;
    version: string | null;
}>>;
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