import { AuthPluginBase } from '../../lib/auth-plugin';
/**
 * Autocomplete token that opts an input into WebAuthn conditional UI.
 *
 * Browsers only honour it as the *last* token of the attribute, which is why
 * {@link withPasskeyAutoFill} appends rather than prepends.
 */
export declare const webAuthnAutoCompleteToken = "webauthn";
/**
 * Append the `webauthn` autocomplete token when passkey autofill is active.
 *
 * @param autoComplete - The field's regular autocomplete value, e.g. `"email"`.
 * @param enabled - Whether the passkey plugin has conditional UI turned on.
 *
 * @example
 * ```tsx
 * <input autoComplete={withPasskeyAutoFill("email", passkeyAutoFill)} />
 * ```
 */
export declare function withPasskeyAutoFill(autoComplete: string, enabled: boolean): string;
/**
 * Whether the registered passkey plugin has conditional UI enabled.
 *
 * Returns `false` when the passkey plugin isn't registered at all, so sign-in
 * forms can call this without knowing which plugins a consumer installed.
 *
 * @param plugins - The plugin list from `useAuth()`.
 */
export declare function isPasskeyAutoFillEnabled(plugins: AuthPluginBase[]): boolean;
/**
 * Whether the browser can service a WebAuthn request with conditional
 * mediation, i.e. render passkeys inside the autofill dropdown instead of a
 * modal.
 *
 * Resolves `false` outside the browser and on engines that predate the API,
 * so callers can await it unconditionally.
 */
export declare function isConditionalMediationAvailable(): Promise<boolean>;