export interface EnhanceOptions {
    /** Label of the copy button, also its tooltip */
    label?: string;
    /** Label shown for a moment after the code is copied */
    copiedLabel?: string;
    /** Label of the download button, also its tooltip */
    downloadLabel?: string;
}
/**
 * Adds the buttons to the code blocks inside `root` that have none yet. Returns the number of blocks it changed.
 * Call it again for blocks added to the page later.
 */
export declare function enhance(root?: ParentNode, { label, copiedLabel, downloadLabel }?: EnhanceOptions): number;