export declare const mapKeysToLowerCase: (obj: object) => {
    [key: string]: string;
};
export declare const getEnumKeyFromEnumValue: (enumType: any, enumValue: string | number) => any;
export declare const getEnumValueFromEnumKey: (enumType: any, enumKey: string | number) => any;
export declare const removeEmpty: (obj: any) => any;
export declare const mapToObjectAndKeepProperties: (source: any, target: any) => any;