import { MongoUserType } from '@models';
export declare const USER_TTL: number;
export declare const getUserCacheKey: (did: string) => string;
export declare const getCachedUserForDid: (did: string) => Promise<MongoUserType | null | undefined>;
export declare const setCachedUserForDid: (did: string, user: MongoUserType) => Promise<"OK" | undefined>;
export declare const deleteCachedUsersForDid: (did: string) => Promise<number | undefined>;
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