import { ConfigOption } from '../index';
export declare class ConfigService {
    private logger;
    private readonly envConfig;
    constructor(option: ConfigOption);
    get(key: string, defaultValue?: any): any;
    getString(key: string, defaultValue?: string): string;
    getNumber(key: string, defaultValue?: number): number;
    getBoolean(key: string, defaultValue?: boolean): boolean;
    getStringArray(key: string, defaultValue?: string[]): string[];
}