interface IString {
    xRange(range: {
        start: number;
        end?: number;
    } | {
        start: number;
        count?: number;
    }): string;
    xReplaceRange(range: {
        start: number;
        end: number;
    } | {
        start: number;
        count: number;
    }, replacement: string): string;
    xEncodeToBase64(): string;
    xDecodeBase64(): string;
    xContains(sub: string): boolean;
}
interface String extends IString {
}
//# sourceMappingURL=xStringD.d.ts.map