/** An absent property and a property containing undefined have different undo results. */
export type PropValue = {
    exists: false;
} | {
    exists: true;
    value: unknown;
};
export declare function pointerSegments(pointer: string): string[];
export declare function recoveryPointer(props: Record<string, unknown>, pointer: string): string;
export declare function readPropValue(props: unknown, pointer: string): PropValue;
export declare function writePropValue(props: Record<string, unknown>, pointer: string, field: PropValue): Record<string, unknown>;