export declare namespace StringTools {
    /**generates a unique string id with requested length */
    function GenerateStringId(length: number, exceptions?: Array<string>): string;
    /**lerps text with alpha */
    function LerpText(text: string, alpha: number): string;
    function LerpTextTo(start_text: string, target_text: string, alpha: number): string;
    function IsUndefinedOrEmpty(string_value?: string): string_value is "" | undefined;
    function IsUndefinedOrEmptyOrWhiteSpace(string_value?: string): boolean;
}