import { LitElement, PropertyValues } from 'lit';
import { BpTypeElement } from '@blueprintui/components/internals';
/**
 * Accordion Panel
 *
 * @element bp-accordion-panel
 * @since 1.0.0
 * @command --toggle
 * @command --close
 * @command --open
 * @slot - slot for header and content
 * @slot bp-accordion-header
 * @slot bp-accordion-content
 */
export declare class BpAccordionPanel extends LitElement implements Pick<BpTypeElement, keyof BpAccordionPanel> {
    #private;
    /** determine if element is expanded */
    accessor expanded: boolean;
    static styles: CSSStyleSheet[];
    render(): import("lit").TemplateResult<1>;
    connectedCallback(): void;
    updated(props: PropertyValues<this>): void;
}