export interface TokenResponse {
    token: string;
    expiresAt: number;
}
/**
 * Start a local server to receive the auth token from browser OAuth flow
 * @param state - CSRF protection state parameter
 * @param deviceName - Name of the device for logging
 * @param apiUrl - API base URL (used for logging/debugging)
 * @returns Promise resolving to token and expiration
 */
export declare function startAuthServer(state: string, _deviceName: string, _apiUrl: string): Promise<TokenResponse>;
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