interface UseEnvOptions {
    folder?: string;
}
export interface ConfigModuleOptions {
    envKey?: string;
    useFile?: string;
    useEnv?: boolean | UseEnvOptions;
    useFunction?: (rootFolder: string, environment: string) => string;
    defaultEnvironment?: string;
    allowExtras?: boolean;
    onError?: string;
    allowMissingEnvFile?: boolean;
}
export {};