type StringLike = {
    toString(): string;
};
declare class String implements StringLike {
    private _value;
    constructor(value?: string);
    clear(): this;
    append(...text: StringLike[]): this;
    reset(): this;
    bold(text: StringLike): this;
    italic(text: StringLike): this;
    underline(text: StringLike): this;
    strike(text: StringLike): this;
    black(text: StringLike): this;
    bgBlack(text: StringLike): this;
    red(text: StringLike): this;
    bgRed(text: StringLike): this;
    green(text: StringLike): this;
    bgGreen(text: StringLike): this;
    yellow(text: StringLike): this;
    bgYellow(text: StringLike): this;
    blue(text: StringLike): this;
    bgBlue(text: StringLike): this;
    magenta(text: StringLike): this;
    bgMagenta(text: StringLike): this;
    cyan(text: StringLike): this;
    bgCyan(text: StringLike): this;
    white(text: StringLike): this;
    bgWhite(text: StringLike): this;
    gray(text: StringLike): this;
    default(text: StringLike): this;
    bgDefault(text: StringLike): this;
    toString(): string;
}

export { String };