/**
 * @description
 * @export
 * @class Descriptors
 * @template {object} Obj
 * @template {keyof Obj} Keys
 */
export declare class Descriptors<Obj extends object, Keys extends keyof Obj> {
    #private;
    /**
     * @description Accessor to get stored property descriptors.
     * @returns The returned value is descriptors of map type.
     */
    get descriptors(): Map<Keys, PropertyDescriptor>;
    /**
     * @description Creates an instance of `Descriptors` with obj and `keys` to pick descriptors.
     * @param object An object from which descriptors are retrieved.
     * @param keys Optional property keys to retrieve from specified `object`.
     */
    constructor(object: Obj, ...keys: Keys[]);
    /**
     * @description Get property descriptor from `#descriptors`.
     * @param key
     * @returns
     */
    get(key: Keys): PropertyDescriptor | undefined;
    /**
     * @description Get all descriptors from `#descriptors`.
     * @returns The returned value is array of all stored descriptors.
     */
    getAll(): Array<[Keys, PropertyDescriptor]>;
    /**
     * @description Check whether `#descriptors` has `key`.
     * @param key The `key` to check whether descriptors has.
     * @returns The returned value is a `boolean` indicating whether descriptors has descriptor of property `key`.
     */
    has(key: Keys): boolean;
    /**
     * @description The method sets the `value` under `key` in `#descriptors`.
     * @param key The property key to set descriptor.
     * @param value Property descriptor to set under the `key`.
     * @returns The returned value is an instance of `Descriptors`.
     */
    set(key: Keys, value: PropertyDescriptor): this;
    /**
     * @description The method sets all descriptors from `object`.
    //  * @param object The object from which all descriptors are set.
     * @returns The returned value is an instance of this.
     */
    setAll<Key extends Keys>(): this;
    /**
     * @description The method sets descriptors from `object` of `keys`.
     * @param object An object from which descriptors are set to `#descriptors`.
     * @param keys Keys of `object` to retrieved descriptors.
     * @returns The returned value is an instance of `Descriptors`.
     */
    setPicked<Key extends Keys>(...keys: Key[]): this;
}