declare class StringHandler {
    split(input: string, delimiter: string): string[];
    charAt(input: string, index: number): string;
    concat(...strings: string[]): string;
    includes(input: string, searchString: string, position?: number): boolean;
    indexOf(input: string, searchString: string, fromIndex?: number): number;
    lastIndexOf(input: string, searchString: string, fromIndex?: number): number;
    slice(input: string, start?: number, end?: number): string;
    toLowerCase(input: string): string;
    toUpperCase(input: string): string;
    trim(input: string): string;
    trimStart(input: string): string;
    trimEnd(input: string): string;
    padStart(input: string, maxLength: number, padString?: string): string;
    padEnd(input: string, maxLength: number, padString?: string): string;
    replace(input: string, searchValue: string | RegExp, replaceValue: string): string;
    search(input: string, regexp: RegExp): number;
    substring(input: string, start: number, end?: number): string;
    startsWith(str: string, searchString: string, position?: number): boolean;
    endsWith(str: string, searchString: string, length?: number): boolean;
    repeat(str: string, count: number): string;
}
export { StringHandler };