declare global {
    interface String {
        clueTrim(needle?: string): string;
        clueTrimLeft(needle?: string): string;
        clueTrimRight(needle?: string): string;
        toLower(): string;
        toUpper(): string;
        insert(needle: string, index: number): string;
        indexReplace(needle: string, index: number): string;
        rangeIndexReplace(needle: string, startIndex?: number, endIndex?: number): string;
        getShowCount(needle: string): number;
        getShowCounts(): object;
        batchReplace(needle: object): string;
        sprintf(...params: string[]): String;
    }
}
export {};