import { TrackChangeCustomAttribute } from '../../../../document-api/src/index.js';
type TrackedChangeDetailLine = {
    excerpt: string;
    label: string;
};
type TrackedChangeRowImagePreview = {
    src: string;
    contentType?: string;
    role?: string;
    width?: number;
    height?: number;
    alt: string;
};
export declare const shallowEqual: (a: unknown, b: unknown) => boolean;
export declare const normalizeTrackedChangeDetailLines: (lines: unknown) => TrackedChangeDetailLine[] | null;
export declare const trackedChangeDetailLinesEqual: (a: unknown, b: unknown) => boolean;
export declare const normalizeTrackedChangeCustomAttributes: (attributes: unknown) => TrackChangeCustomAttribute[] | null;
export declare const trackedChangeCustomAttributesEqual: (a: unknown, b: unknown) => boolean;
export declare const normalizeTrackedChangeImagePreview: (preview: unknown) => TrackedChangeRowImagePreview | null;
export declare const cloneV2TrackedChangeStory: (story: unknown) => Record<string, unknown> | null;
export {};