export interface TokenResult {
    id_token: string;
    user_id: string;
}
export declare function getValidIdToken(): Promise<TokenResult>;
/**
 * Issue #560: humanize a network-level failure of the token refresh. Authored
 * locally (not reused from client.ts's classifyNetworkError) to avoid a
 * token<->client import cycle and because the failing host is the sign-in
 * service, not the Graphit API. NEVER return the raw error message (undici's
 * "fetch failed"); always point the user at `graphit auth login`.
 */
export declare function refreshNetworkError(err: unknown): string;