type CommentId = string | number;
export type TrackedChangeSideGroup = 'source' | 'destination';
type TrackedChangeLinkFields = {
    parentCommentId?: CommentId | null;
    threadingParentCommentId?: CommentId | null;
    trackedChangeParentId?: CommentId | null;
    trackedChangeThreadParentId?: CommentId | null;
};
type TrackedChangeThreadOwnerFields = TrackedChangeLinkFields & {
    commentId: CommentId;
    trackedChange?: boolean;
    trackedChangeCanonicalId?: CommentId | null;
    trackedChangeSide?: string | null;
    semanticColorKey?: string | null;
};
type TrackedChangeThreadFields = TrackedChangeThreadOwnerFields & {
    createdTime?: number;
};
export declare const trackedChangeRowSideGroup: (comment: {
    semanticColorKey?: string | null;
}) => TrackedChangeSideGroup | null;
export declare const buildTrackedChangeThreadOwnerIndex: <Comment extends TrackedChangeThreadOwnerFields>(allComments: ReadonlyArray<Comment>) => Map<Comment, Comment>;
export declare const buildTrackedChangeThreadIndex: <Comment extends TrackedChangeThreadFields>(allComments: ReadonlyArray<Comment>, previous?: ReadonlyMap<CommentId, ReadonlyArray<Comment>>) => Map<CommentId, ReadonlyArray<Comment>>;
export declare const buildTrackedChangeDecisionLinkIndex: <Comment extends TrackedChangeLinkFields>(allComments: ReadonlyArray<Comment>, previous?: ReadonlyMap<string, ReadonlyArray<Comment>>) => Map<string, ReadonlyArray<Comment>>;
export {};