interface UserConfig {
    rootRefCode?: string;
    password: string;
}
interface User {
    parentRefCode: string;
    refCode: string;
    password: string;
    email: string;
    children: User[];
}
interface NormalizedUser {
    parentRefCode: string;
    refCode: string;
    password: string;
    email: string;
}
interface ReferralTreeConfig {
    noOfLevels: number;
    minChildPerNode: number;
    maxChildPerNode: number;
    mustHaveChildPerNode: number;
    userConfig: UserConfig;
    passwordHasher?: (password: string) => Promise<string>;
    refCodeGenerator?: () => string;
    addAdditionalData?: () => Promise<Record<string, any>>;
}
export declare const generateReferralTree: (data: ReferralTreeConfig) => Promise<{
    rootUser: User;
    totalUsersCount: number;
    totalUsersToInsert: NormalizedUser[];
}>;
export {};