type Style = {
    in: string;
    out: string;
};
export declare class StyleBag {
    back: Style | null;
    front: Style | null;
    emboldened: Style | null;
    fainted: Style | null;
    hidden: Style | null;
    inversed: Style | null;
    italic: Style | null;
    standout: Style | null;
    strikethrough: Style | null;
    strong: Style | null;
    underlined: Style | null;
}
export declare class TermStringStyle extends StyleBag {
    static empty: TermStringStyle;
    constructor(prop?: Partial<StyleBag>);
    clearSequence(): string;
    diff(props: Partial<StyleBag>): (keyof StyleBag)[];
    merge(props: Partial<StyleBag>): TermStringStyle;
}
export {};