/**
 * @file Biometric authentication utilities
 * @module expo-passkey/client/utils/biometrics
 */
import type { BiometricSupportInfo } from "../../types";
/**
 * Checks if biometric authentication is supported and available
 * @returns Promise resolving to biometric support information
 */
export declare function checkBiometricSupport(): Promise<BiometricSupportInfo>;
/**
 * Determines the type of biometric authentication available
 * @param types Available authentication types
 * @returns Human-readable biometric type
 */
export declare function getBiometricType(types: number[]): string;
/**
 * Checks if passkeys are supported on the current device
 * This checks both platform requirements and native module availability
 *
 * @returns Promise resolving to true if passkeys are supported
 */
export declare function isPasskeySupported(): Promise<boolean>;
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