/**
 * merge_runs — merge adjacent format-identical runs within paragraphs.
 *
 * Safety barriers: never merge across fldChar/instrText, comment range,
 * bookmark, or tracked-change wrapper boundaries.
 */
export type MergeRunsResult = {
    runsMerged: number;
    proofErrRemoved: number;
};
export type MergeRunsOptions = {
    /**
     * When true, adjacent runs that differ in any `w:rsid*` attribute are
     * NOT merged, and existing rsid attributes on live runs are not stripped.
     * Use this from edit pipelines (e.g. `replace_text`) so that mutations
     * to one run do not silently rewrite rsid identity on neighbouring runs
     * the caller never touched. The default (`false`) preserves the
     * normalize-on-open behaviour: every run in the body is first stripped
     * of its `w:rsid*` attributes, then format-identical adjacent runs are
     * merged unconditionally.
     */
    preserveRsidIdentity?: boolean;
};
/**
 * Merge adjacent format-identical runs across all paragraphs in the
 * document body. Removes `<w:proofErr>` elements.
 *
 * Pass `{ preserveRsidIdentity: true }` from edit pipelines that must not
 * disturb rsid attributes on runs the caller did not touch (see #286).
 * The default omits that guard and matches the historical normalize-on-open
 * behaviour, which consolidates rsid-fragmented runs that Word produces
 * across edit sessions.
 *
 * Safety barriers prevent merges across:
 * - Field boundaries (fldChar, instrText)
 * - Comment range boundaries (commentRangeStart, commentRangeEnd)
 * - Bookmark boundaries (bookmarkStart, bookmarkEnd)
 * - Tracked-change wrapper boundaries (ins, del, moveFrom, moveTo)
 */
export declare function mergeRuns(doc: Document, opts?: MergeRunsOptions): MergeRunsResult;
//# sourceMappingURL=merge_runs.d.ts.map