import { SkipCondition, SkipOptions } from '../../fields/skip.js';
import type { AnyObject, DeepPartial, DeepReadonly, Nullable, Predicate } from '../../types/index.js';
import type { IObjectOps, NumKey } from './types.js';
type Keys<T extends AnyObject> = NumKey<T>[];
export declare class ObjectOps<T extends AnyObject> implements IObjectOps<T> {
    readonly keys: Keys<T>;
    readonly Empty: Readonly<T>;
    protected _validator: Predicate<DeepReadonly<T>> | undefined;
    constructor(keys: Keys<T>);
    addValidator(validator: Predicate<DeepReadonly<T>>): this;
    getEmpty(): T;
    clone(o: Nullable<DeepReadonly<T>>): T;
    isEmpty(o: Nullable<DeepReadonly<T>>): boolean;
    isValid(o: Nullable<DeepReadonly<T>>): boolean;
    isEquals(a: Nullable<DeepReadonly<T>>, b: Nullable<DeepReadonly<T>>): boolean;
    strip(v: Nullable<DeepReadonly<T>>, condition?: SkipCondition<T, NumKey<T>>): DeepPartial<T>;
    toStringData(v: Nullable<DeepReadonly<T>>, labels: Readonly<Record<Keys<T>[number], string>>, strip?: SkipOptions): [number, string][];
    assign(to: T, other: Nullable<DeepReadonly<T>>): T;
}
export {};