import { LitElement } from 'lit';
import type ToggleButton from '../toggle-button/toggle-button';
import type { PropertyValueMap } from 'lit';
export declare class ToggleButtonGroupBase extends LitElement {
    color: '' | 'primary' | 'secondary' | 'success' | 'warning' | 'error' | 'info';
    multi: boolean;
    slottedToggleButtons: ToggleButton[];
    selectedIndexes: number[];
    select(index: number): void;
    deselect(index: number): void;
    enable(index: number): void;
    disable(index: number): void;
    private emit;
    private handleSlotChange;
    protected willUpdate(_changedProperties: PropertyValueMap<never>): void;
    render(): import("lit-html").TemplateResult<1>;
}