import { NativeEventEmitter } from 'react-native';
export declare function isFingerprintAvailable(): Promise<boolean>;
export declare function authenticateFingerprint(reason: string): Promise<string>;
export declare function authenticateDeviceCredentials(promptMessage: string): Promise<string>;
export declare function openSecuritySettings(): Promise<boolean>;
export declare const fingerprintEmitter: NativeEventEmitter;
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