export type UserSource = 'anlix' | 'flashman' | 'control';
export interface UserMessage {
    _id: {
        client: string;
        source: UserSource;
        id: string;
    };
    name: string;
}
export interface User extends UserMessage {
    last_update: Date;
}
export declare const sourceFromProduct: (product: string) => UserSource;
export declare const buildMessage: (client: string, product: string, id: string, name: string) => [UserMessage | undefined, string | undefined];
export declare const buildMessageForJS: (client: any, product: any, id: any, name: any) => [UserMessage | undefined, string | undefined];
export declare const validateMessage: (u: any) => string | undefined;
export declare const build: (client: string, product: string, id: string, name: string, date: Date) => [User | undefined, string | undefined];
export declare const buildForJS: (client: any, product: any, id: any, name: any, date: any) => [User | undefined, string | undefined];
export declare const validate: (u: any) => string | undefined;
export declare const validateUserCommon: (u: any) => string | undefined;
export declare const convertMessageToUser: (syncedUser: UserMessage, date: Date) => User;