import { NodeSpec, Node as PMNode } from '../../prosemirror';
export declare type MediaType = 'file' | 'link';
export declare type DisplayType = 'file' | 'thumbnail';
/**
 * @name media_node
 */
export interface Definition {
    type: 'media';
    /**
     * @minItems 1
     */
    attrs: Attributes;
}
export interface Attributes {
    /**
     * @minLength 1
     */
    id: string;
    type: MediaType;
    collection: string;
    /**
     * @minLength 1
     */
    occurrenceKey?: string;
    __fileName?: string | null;
    __fileSize?: number | null;
    __fileMimeType?: string | null;
    __displayType?: DisplayType | null;
}
export declare const media: NodeSpec;
export declare const copyOptionalAttrs: (from: Object, to: Object, map?: ((string: any) => string) | undefined) => void;
export declare const toJSON: (node: PMNode) => {
    attrs: {};
};