export type ButtonGroupRole = 'group' | 'toolbar';
export type ButtonGroupSize = 'sm' | 'lg';
export declare class BsButtonGroup {
  ariaLabel: string;
  size: ButtonGroupSize;
  role: ButtonGroupRole;
  vertical: boolean;
  el: HTMLElement;
  private __slot;
  addSizeToButtons(): void;
  render(): any;
}
