import { LitElement, PropertyValues } from 'lit';
import type { FormLayout } from '../utils/interfaces.js';
/**
 * Control Group
 *
 * ```typescript
 * import '@blueprintui/components/include/forms.js';
 * ```
 *
 * ```html
 * <bp-fieldset>
 *   <label>...</label>
 *
 *   <label></label>
 *   <input ... />
 *
 *   <label></label>
 *   <input ... />
 * </bp-fieldset>
 * ```
 *
 * @element bp-fieldset
 * @since 1.0.0
 * @slot
 */
export declare class BpFieldset extends LitElement {
    #private;
    /** determine field layout */
    accessor layout: FormLayout;
    protected get inlineItems(): HTMLInputElement[][];
    static styles: CSSStyleSheet[];
    /** @private */
    _internals: ElementInternals;
    render(): import("lit").TemplateResult<1>;
    connectedCallback(): void;
    firstUpdated(props: PropertyValues<this>): void;
}