import BaseComponent from "../Counter/BaseComponent";
declare class ButtonGroupButton extends BaseComponent {
    buttonValue: any;
    constructor();
    static get observedAttributes(): string[];
    attributeChangedCallback(name: string, oldValue: any, newValue: any): void;
    setSelectedButtonCss(state: any): void;
    addIcon(icon: string, size?: string): void;
}
export default ButtonGroupButton;