import { ApplySchemaAttributes, CommandFunction, InputRule, KeyBindings, NodeExtension, NodeExtensionSpec, NodeSpecOverride, ProsemirrorAttributes, Static } from '@remirror/core';
import { NodePasteRule } from '@remirror/pm/paste-rules';
export interface HeadingOptions {
    /**
     * The numerical value of the supporting headings.
     *
     * @defaultValue `[1, 2, 3, 4, 5, 6]`
     */
    levels?: Static<number[]>;
    /**
     * The default level heading to use.
     *
     * @defaultValue 1
     */
    defaultLevel?: Static<number>;
}
export type HeadingExtensionAttributes = ProsemirrorAttributes<{
    /**
     * The heading size.
     */
    level?: number;
}>;
export interface HeadingOptions {
}
export declare class HeadingExtension extends NodeExtension<HeadingOptions> {
    get name(): "heading";
    createTags(): ("formattingNode" | "block" | "textBlock")[];
    createNodeSpec(extra: ApplySchemaAttributes, override: NodeSpecOverride): NodeExtensionSpec;
    /**
     * Toggle the heading for the current block. If you don't provide the
     * level it will use the options.defaultLevel.
     */
    toggleHeading(attrs?: HeadingExtensionAttributes): CommandFunction;
    /**
     * Dynamically create the shortcuts for the heading extension.
     */
    createKeymap(fn: (shortcut: string) => string[]): KeyBindings;
    createInputRules(): InputRule[];
    createPasteRules(): NodePasteRule[];
}
declare global {
    namespace Remirror {
        interface AllExtensions {
            heading: HeadingExtension;
        }
    }
}