import { Subject } from 'rxjs';

declare class Change<T = any> {
    previousValue: T;
    currentValue: T;
    constructor(previousValue: T, currentValue: T);
}
type Changes<T> = T extends (infer I)[] ? Change<I>[] | {
    [index: number]: Changes<I>;
} : T extends object ? {
    [P in keyof T as T[P] extends Subject<any> ? never : P]?: Changes<T[P]>;
} : Change<T>;

export { Change, Changes };