import { BenchmarkApiResponse, FaceApiErrorPayload, FaceApiSuccessPayload } from '../model/types.js';
export interface FaceApiResponse<T = FaceApiSuccessPayload & FaceApiErrorPayload> {
    ok: boolean;
    status: number;
    data: T | null;
}
export interface FaceProfile {
    external_user_id: string;
    created_at: string;
}
export interface FaceRequestOpts {
    signal?: AbortSignal;
    idempotencyKey?: string;
}
interface FaceApiClientOptions {
    baseUrl?: string;
}
/**
 * Scanner API client.
 *
 * Accepts a per-instance `baseUrl` so embedded SDK mounts do not mutate
 * shared module state. If omitted, it falls back to the demo app environment.
 */
export declare class FaceApiClient {
    private readonly headers;
    private readonly apiKey;
    private readonly baseUrl?;
    constructor(apiKey: string, options?: FaceApiClientOptions);
    private request;
    private payload;
    register(externalUserId: string, imageBase64: string, fas: boolean, opts?: FaceRequestOpts & {
        detailMode?: boolean;
    }): Promise<FaceApiResponse<FaceApiSuccessPayload & FaceApiErrorPayload>>;
    authenticate(externalUserId: string, imageBase64: string, fas: boolean, opts?: FaceRequestOpts & {
        detailMode?: boolean;
    }): Promise<FaceApiResponse<FaceApiSuccessPayload & FaceApiErrorPayload>>;
    listProfiles(opts?: FaceRequestOpts): Promise<FaceApiResponse<{
        profiles?: FaceProfile[];
    }>>;
    benchmark(imageBase64: string, externalUserId: string | null, opts?: FaceRequestOpts): Promise<FaceApiResponse<BenchmarkApiResponse>>;
    deleteProfile(externalUserId: string, opts?: FaceRequestOpts): Promise<FaceApiResponse<FaceApiSuccessPayload>>;
    purgeAll(opts?: FaceRequestOpts): Promise<FaceApiResponse<{
        purged_count?: number;
    }>>;
    lookupUser(externalUserId: string, opts?: FaceRequestOpts): Promise<boolean>;
    validate(opts?: FaceRequestOpts): Promise<boolean>;
}
export interface MlStatus {
    active_model_id: string;
    active_model: {
        model_id: string;
        version: string;
        supports_tta: boolean;
    } | null;
    benchmark_enabled: boolean;
    benchmark_models: string[];
    detail_mode_default: boolean;
}
export declare function getMlStatus(opts?: {
    baseUrl?: string;
    signal?: AbortSignal;
}): Promise<MlStatus>;
export declare function getFaceClientBaseUrl(baseUrl?: string): string;
export {};
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