export declare function saveDeviceCredentials(userProfileId: string, email: string): Promise<void>;
export declare function getDeviceId(): Promise<string | null>;
export declare function getDeviceEmail(): Promise<string | null>;
export declare function getDeviceAuthCode(): Promise<string | null>;
export declare function getDeviceUserProfileId(): Promise<string | null>;
export declare function clearDeviceCredentials(): Promise<void>;
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