import { PlatePlugin } from '@udecode/plate-core';
export interface HeadingsPlugin {
    levels: number;
}
export declare const ELEMENT_H1 = "h1";
export declare const ELEMENT_H2 = "h2";
export declare const ELEMENT_H3 = "h3";
export declare const ELEMENT_H4 = "h4";
export declare const ELEMENT_H5 = "h5";
export declare const ELEMENT_H6 = "h6";
export declare const KEYS_HEADING: string[];
export declare const createHeadingPlugin: <T = {}>(override?: Partial<PlatePlugin<T, HeadingsPlugin>>, overrideByKey?: import("@udecode/plate-core").OverrideByKey<T>) => PlatePlugin<T, HeadingsPlugin>;