/**
 * A wrapper element that can collapse and expand to fit its content dynamically and efficiently.
 *
 * @category Collapsible
 * @category Elements
 * @see https://electrovir.github.io/element-vir/vira/book/elements/vira-collapsible-wrapper
 */
export declare const ViraCollapsibleWrapper: import("element-vir").DeclarativeElementDefinition<"vira-collapsible-wrapper", {
    expanded: boolean;
}, {
    contentHeight: number;
}, {
    expandChange: import("element-vir").DefineEvent<boolean>;
}, "vira-collapsible-wrapper-expanded", "vira-collapsible-wrapper-", readonly ["header"]>;