import { TAGS } from './constants';
import { ISOXMLManager } from '../ISOXMLManager';
import { XMLElement } from '../types';
import { Entity, EntityConstructor } from '../types';
export declare enum ExternalFileReferenceFiletypeEnum {
    XML = "1"
}
export type ExternalFileReferenceAttributes = {
    Filename: string;
    Filetype: ExternalFileReferenceFiletypeEnum;
    ProprietaryAttributes?: {
        [name: string]: string;
    };
    ProprietaryTags?: {
        [tag: string]: XMLElement[];
    };
};
export declare class ExternalFileReference implements Entity {
    attributes: ExternalFileReferenceAttributes;
    isoxmlManager: ISOXMLManager;
    tag: TAGS;
    constructor(attributes: ExternalFileReferenceAttributes, isoxmlManager: ISOXMLManager);
    static fromXML(xml: XMLElement, isoxmlManager: ISOXMLManager, internalId?: string, targetClass?: EntityConstructor): Promise<Entity>;
    toXML(): XMLElement;
}