import { Authentication, type Types } from 'ox/webauthn';
import type { OneOf } from '../internal/types.js';
/** Authentication response. */
export type Response = Authentication.Response<true>;
/**
 * Signs a challenge via `navigator.credentials.get`.
 *
 * Accepts either serialized options (from the server) or pre-formed
 * options. Returns a serialized response ready to send back to the server.
 *
 * @example
 * ```ts
 * import { Authentication } from 'webauthx/client'
 *
 * // 1. Fetch serialized options from the server.
 * const options = await fetch('/auth/challenge').then((r) => r.json())
 *
 * // 2. Prompt the user to sign the challenge.
 * const response = await Authentication.sign({ options })
 *
 * // 3. Send the response back to the server for verification.
 * await fetch('/auth/verify', {
 *   method: 'POST',
 *   body: JSON.stringify(response),
 * })
 * ```
 */
export declare function sign(options: sign.Options): Promise<Response>;
export declare namespace sign {
    type Options = OneOf<Authentication.sign.Options | {
        /** Custom credential request function (for testing). */
        getFn?: Authentication.sign.Options['getFn'] | undefined;
        /** Serialized options from the server. */
        options: Types.CredentialRequestOptions<true>;
    }>;
    type ErrorType = Authentication.sign.ErrorType | Authentication.deserializeOptions.ErrorType | Authentication.serializeResponse.ErrorType;
}
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