/**
 * Look inside a database and return the person's user profiles
 *
 * @param userIdentifier - User identifier to lookup
 * @returns User data
 */
export declare function lookUpUser(userIdentifier: string): [
    {
        /** Profile ID */
        profileId: string;
        /** Profile Data */
        profileData: {
            /** Name */
            name: string;
            /** Interests */
            interests: string;
        };
    }
];
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