declare function capitalizeFirstLetter(word: string): string;
declare function getRandomNumber(min?: number, max?: number): number;
declare function generateUsername(separator?: string, enableColor?: boolean, suffixNumber?: number): string;

declare function generateCombinationsToFile(outputFilePath: string, randomRange: number[]): void;

declare class HydrateUsernamesInRedis {
    private redis;
    private clientType;
    constructor(redisInstance: any);
    private detectRedisClient;
    storeUsernamesFromFile(redisKey: string, batchSize?: number): Promise<void>;
    generateAndStoreCombinations(filePath: string, redisKey: string): Promise<void>;
    readAndStoreUsernamesFromStream(filePath: string, redisKey: string): Promise<void>;
    addUsernamesToRedis(redisKey: string, usernames: string[]): Promise<void>;
    getRandomUsernameFromRedis(redisKey: string, removeSelectedUsername?: boolean): Promise<any>;
    quitRedis(): Promise<void>;
}

type Style = 'lowerCase' | 'upperCase' | 'capital';
interface Config {
    dictionaries: string[][];
    separator?: string;
    length?: number;
    style?: Style;
}

export { type Config, HydrateUsernamesInRedis, capitalizeFirstLetter, generateCombinationsToFile, generateUsername, getRandomNumber };