import { AbstractBusinessObject, BookType, BusinessObjectType } from '@heduapp/book-objects/business-object';
import { Transaction } from 'objection';
import { ContentAuthor, ContentGroup, ContentGroupTypes, ContentLeaf } from '../db/model';
export declare function encodeChild(businessObject: AbstractBusinessObject, trx: Transaction, bookType: BookType, author?: ContentAuthor): Promise<ContentGroup | ContentLeaf>;
export declare function determineContentGroupType(businessObjectType: BusinessObjectType, bookType: BookType): ContentGroupTypes;