import type { Command } from 'prosemirror-state';
import { Feature } from '../../Feature';
declare module '../../types' {
    interface Commands {
        toggleH3: Command;
    }
}
/**
 * Matched `#` at the start of line to convert it to big title
 */
export declare const inputRule: RegExp;
declare const H3: Feature<any, any>;
export default H3;
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