declare global {
    interface String {
        isValidPhoneNumber(): boolean;
        transformPhoneNumberToStandardFormat(): string | null;
        isValidAlgerianPhoneNumber(): boolean;
        transformAlgerianPhoneNumberToStandardFormat(): string | null;
        toSnakeCase(): string;
        toKebabCase(): string;
        capitalizeFirstLetter(): string;
        kebabToCamel(): string;
        camelToKebab(): string;
        pluralize(): string;
        singularize(): string;
        camelToWords(): string;
    }
}
export {};