/** Code, language and settings of an existing block */
export interface BlockData {
    code: string;
    language: string;
    lineNumbers: boolean;
    /** Name of the file the code is offered as, `''` for the default name; `null` when it is not offered */
    download: string | null;
    /** Saved with plain code for the highlighter of the site, see `renderNative` */
    native: boolean;
    /** Has the header with the language and the copy and download buttons */
    header: boolean;
}
/**
 * The block that contains `node`: a block of this plugin, or, unless `plainPre` is false, a plain `<pre>` (with or
 * without `<code>`), which becomes such a block when it is edited. `null` outside a block or outside `root`.
 */
export declare function findBlock(node: Node | null, root: HTMLElement, plainPre?: boolean): HTMLElement | null;
/** Reads the code and the settings of a block, see {@link findBlock} */
export declare function readBlock(block: HTMLElement): BlockData;
/**
 * Turns the `<pre>` elements of the blocks into `<div>` elements for the editor: tools that take every `<pre>` of
 * the editor for their own (Jodit PRO `pasteCode`) leave the blocks alone. {@link unlockValue} turns them back.
 */
export declare function lockValue(html: string): string;
/**
 * Removes what the editor adds to the blocks (buttons, non-editable state, selection, `<div>` in place of `<pre>`)
 * from an HTML value. The `<code>` of a block gets the `nohighlight` and `nohljsln` classes in place of `language-*`, so that the
 * highlighters of a site (highlight.js, Prism) leave the block alone; its language stays in `data-lang`.
 */
export declare function unlockValue(html: string): string;
/** The classes of the `<code>` of a block with `nohighlight` and `nohljsln` in place of `language-*` */
export declare function noHighlight(classes: string): string;