import type { CSSResultGroup } from 'lit';
import SynergyElement from '../../internal/synergy-element.js';
/**
 * @summary Button groups can be used to group related buttons into sections.
 * @documentation https://synergy-design-system.github.io/?path=/docs/components-syn-button-group--docs
 * @status stable
 * @since 3.1.0
 *
 * @slot - One or more `<syn-button>` elements to display in the button group.
 *
 * @csspart base - The component's base wrapper.
 */
export default class SynButtonGroup extends SynergyElement {
    static styles: CSSResultGroup;
    defaultSlot: HTMLSlotElement;
    disableRole: boolean;
    /**
     * A label to use for the button group. This won't be displayed on the screen, but it will be announced by assistive
     * devices when interacting with the control and is strongly recommended.
     */
    label: string;
    /** The button-groups size. This affects all buttons within the group. */
    size: 'small' | 'medium' | 'large';
    /** The button-group's theme variant. This affects all buttons within the group. */
    variant: 'filled' | 'outline';
    private mutationObserver;
    private handleFocus;
    private handleBlur;
    private handleMouseOver;
    private handleMouseOut;
    private handleSlotChange;
    firstUpdated(): void;
    disconnectedCallback(): void;
    render(): import("lit").TemplateResult<1>;
}