import { Editor, Descendant } from "slate";
import { IdentificationHeaders } from "../UsfmEditor";
/**
 * Applies the desired updates to an identification json object
 *
 * @param {Object} current - Json specifying the current identificaton
 *      headers
 * @param {Object} updates - Json specifying the identification headers
 *      to add, update, or remove, and the desired values.
 *      example: {'toc1': 'new_toc1', 'id': 'updated_id'}
 *      Unspecified headers will be kept the same.
 *      To delete a header, pass a null value like {'toc1': null}
 * @returns The updated identification json
 */
export declare function mergeIdentification(current: IdentificationHeaders, updates: IdentificationHeaders): IdentificationHeaders;
export declare function filterInvalidIdentification(ids: IdentificationHeaders): IdentificationHeaders;
/**
 * Normalizes all json values so that every non-null value is a string.
 */
export declare function normalizeIdentificationValues(ids: IdentificationHeaders): IdentificationHeaders;
export declare function identificationToSlate(ids: IdentificationHeaders): Descendant[];
export declare function parseIdentificationFromUsfm(usfm: string): IdentificationHeaders;
export declare function parseIdentificationFromSlateTree(editor: Editor): IdentificationHeaders;