import type { Logger } from "pino";
import type { ProviderUsage } from "../../../server/messages.js";
import type { ProviderApiFetch, ProviderUsageFetcher } from "../provider.js";
interface GrokQuotaProviderOptions {
    logger: Logger;
    fetch?: ProviderApiFetch;
    /** Override home directory (tests). Production uses os.homedir(). */
    homeDir?: string;
}
/** Resolve a Grok CLI token from ~/.grok/auth.json (legacy or current nested shape). */
export declare function extractGrokTokenFromAuth(auth: unknown): string | null;
export declare class GrokQuotaProvider implements ProviderUsageFetcher {
    readonly providerId = "grok";
    readonly displayName = "Grok";
    private readonly logger;
    private readonly fetchApi;
    private readonly homeDir;
    constructor(options: GrokQuotaProviderOptions);
    fetchUsage(): Promise<ProviderUsage>;
    private readGrokToken;
}
export {};
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