import { ExtensionAttributes } from './types/extensions';
import { MarksObject } from './types/mark';
import { DataConsumerDefinition } from '../marks/data-consumer';
import { FragmentDefinition } from '../marks/fragment';
/**
 * @name extension_node
 */
export interface ExtensionBaseDefinition {
    type: 'extension';
    attrs: ExtensionAttributes;
    marks?: Array<any>;
}
/**
 * @name extension_with_marks_node
 */
export type ExtensionDefinition = ExtensionBaseDefinition & MarksObject<DataConsumerDefinition | FragmentDefinition>;
export declare const extension: import("prosemirror-model").NodeSpec;