function createButtonGroup createButtonGroup(buttons: HTMLButtonElement[],options?: { gap?: "xs" | "sm" | "md" | "lg"; vertical?: boolean; }): HTMLDivElement Create a button group container Parameters buttons: HTMLButtonElement[] Array of button elements optional options: { gap?: "xs" | "sm" | "md" | "lg"; vertical?: boolean; } Group options Return Type HTMLDivElement HTMLDivElement containing buttons