/**
 * Collect every comment that should appear inside the tracked-change dialog
 * for `parentComment`. Walks two sources of membership:
 *
 *   1. **Seed**: comments explicitly threaded to this TC via
 *      `trackedChangeThreadParentId`
 *      whose conversational thread *starts here* (no `parentCommentId`),
 *      plus direct replies whose stored or UI-threading parent points at
 *      `parentComment.commentId`.
 *   2. **BFS**: replies-of-replies — any comment whose `parentCommentId`
 *      points to something already in the thread.
 *
 * Pure function — no side effects, no Vue, no store. Extracted from
 * CommentDialog.vue so the logic can be unit-tested in isolation.
 *
 * Returns the comments belonging to this tracked-change thread, in original list order.
 */
export declare const collectTrackedChangeThread: <Comment extends {
    commentId: string;
    parentCommentId?: string | null;
    threadingParentCommentId?: string | null;
    trackedChangeThreadParentId?: string | null;
}>(parentComment: Comment, allComments: ReadonlyArray<Comment>) => Array<Comment>;