import { type CredentialsCtx, type HostContext } from './context';
/**
 * The `/api/deepseek-balance` body: the balance (verbatim from upstream) plus the
 * day's observed spend and the instant the sample was taken.
 *
 * `sampledAt` is the reason the card can say 刚刚更新: it is stamped INSIDE the
 * memoised computation, so it names the moment upstream answered, not the moment
 * this request was served.
 */
export declare function buildDeepSeekBalanceBody(ctx: CredentialsCtx, now: Date): Promise<string>;
/** Register the DeepSeek balance route; returns the disposer `ctx.effect` wants. */
export declare function registerDeepSeekBalance(ctx: HostContext): () => void;