starface-outlook-sync-addin/node_modules/@fluentui/dom-utilities/lib-commonjs/IVirtualElement.d.ts

/**
 * Attached interface for elements which support virtual references.
 * Used internally by the virtual hierarchy methods.
 */
export interface IVirtualElement extends HTMLElement {
    _virtual: {
        parent?: IVirtualElement;
        children: IVirtualElement[];
    };
}