import { default as React } from 'react';
export declare function setRef<T>(ref: React.Ref<T> | undefined, node: T | null): void;
export declare function cloneNodes(vnode: React.ReactNode, props: React.HTMLAttributes<HTMLElement>): React.JSX.Element;
export declare function getChildren(children?: React.ReactNode): React.ReactNode[];
/**
 * Whether an optional content prop deserves its wrapper element.
 *
 * `null` and `undefined` are the documented way to omit a slot, but callers also
 * pass `false` (a conditional like `isAdmin && <Icon />`) or an empty string, and
 * the framework renders `false` as nothing while still mounting the wrapper —
 * which keeps its padding, border and flex gap in the layout with nothing inside
 * it. Numbers count as content, including `0`.
 */
export declare function hasRenderableContent(value: unknown): boolean;
export declare const toggleContainerScroll: (target: HTMLElement | null, lock: boolean) => void;