export declare function removeNode(node: Node & {
    remove?: () => void;
}): void | (Node & {
    remove?: (() => void) | undefined;
});
/**
 * auto remove, then append to {parent}
 * */
export declare function appendNode(node: Node, parent: Node): void;
export declare function setFullscreen(element?: HTMLElement): void;
export declare function exitFullscreen(): void;
/** @deprecated lost type hint */
export declare const qa: (x: string, parent?: HTMLElement) => NodeListOf<Element>;
/** @deprecated lost type hint */
export declare const q: (x: string, parent?: HTMLElement) => Element | null;
export declare function csv_to_table_element(rows: string[][]): HTMLTableElement;
export declare function copyToClipboard(text: string): void;