/**
 * Copyright Aquera Inc 2023
 *
 * This source code is licensed under the BSD-3-Clause license found in the
 * LICENSE file in the root directory of this source tree.
 */
import { CSSResultArray, TemplateResult } from 'lit';
import NileElement from '../internal/nile-element';
/**
 * Nile icon component.
 *
 * @tag nile-button-toggle-group
 *
 */
export declare class NileButtonToggleGroup extends NileElement {
    /**
     * The styles for ButtonToggleGroup
     * @remarks If you are extending this class you can extend the base styles with super. Eg `return [super(), myCustomStyles]`
     */
    static get styles(): CSSResultArray;
    private toggles;
    private defaultSlot;
    disabled: boolean;
    value: String[] | String;
    multiple: boolean;
    disableUserInput: Boolean;
    emptyDefault: boolean;
    firstUpdated(): void;
    updated(changedProperties: Map<string | number | symbol, unknown>): void;
    private updateDisabledState;
    updateTogglePositions(): void;
    handleToggle(event: CustomEvent): void;
    setValue(btnValue: string): void;
    setBtnState(): void;
    /**
     * Render method
     * @slot This is a slot test
     */
    render(): TemplateResult;
}
export default NileButtonToggleGroup;
declare global {
    interface HTMLElementTagNameMap {
        'nile-button-toggle-group': NileButtonToggleGroup;
    }
}