import { Document } from 'libxmljs2';
/**
 * Migrates an exam from schema version 0.3 to 0.4
 *
 * Overview of changes
 *
 * ```xml
 * <e:external-material>
 * ...
 * <e:audio src="1.ogg" times="1">Hören Sie den Text zuerst als Ganzes</e:audio>
 * ...
 * </e:external-material>
 * ```
 *
 * ==>
 *
 * ```xml
 * <e:external-material>
 * ...
 * <e:audio src="1.ogg">Hören Sie den Text zuerst als Ganzes</e:audio>
 * ...
 * </e:external-material>
 * ``` * */
export declare function migrateFrom03To04(doc: Document): void;
//# sourceMappingURL=migrateFrom03To04.d.ts.map