export declare const requiredEnv: (key: string) => string;
export declare const str2Bool: (val: string, trueVals?: string[]) => boolean;
export declare const str2Array: (val: string, step?: string) => string[];
export declare const str2Int: (val: string) => number;
export declare const str2Float: (val: string) => number;
export declare const str2Date: (val: string) => Date;
export declare const loadConfigFromEnv: <T>(prefix: string, paths: string[], required?: string[]) => T;