/**
 * Component check if there are any headings (core/heading blocks) present in the document.
 *
 * @param {Object}          props          Props.
 * @param {React.ReactNode} props.children Children to be rendered.
 *
 * @return {React.ReactNode} The component to be rendered or null if there are headings.
 */
export default function DocumentOutlineCheck({ children }: {
    children: import("react").ReactNode;
}): import("react").ReactNode;
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