import "./styles/index.scss";
import type { BlockContext, CommandFn, CopyContext, EventContext, PasteContext } from "doc-editor-core";
import type { EditorKit } from "doc-editor-core";
import { BlockPlugin } from "doc-editor-core";
import type { RenderElementProps } from "doc-editor-delta";
import type { KeyboardEvent } from "react";
export declare class HeadingPlugin extends BlockPlugin {
    private editor;
    key: string;
    constructor(editor: EditorKit);
    destroy(): void;
    match(props: RenderElementProps): boolean;
    onCommand: CommandFn;
    renderLine(context: BlockContext): JSX.Element;
    onKeyDown: (event: KeyboardEvent<HTMLDivElement>, context: EventContext) => void;
    serialize(context: CopyContext): void;
    deserialize(context: PasteContext): void;
}