import { Types } from 'mongoose';
import { ItemType, Nullable } from '../types/pitmart';
export declare class ContainsUtil {
    constructor();
    /**
     *
     * @param item
     * @param items
     * @returns
     */
    static constains(item: ItemType, items: Nullable<ItemType[]>): boolean;
    /**
     *
     * @param item
     * @param items
     * @returns
     */
    static AddItemIfNotContains(item: ItemType, items: ItemType[]): ItemType[];
    /**
     *
     * @param item
     * @param items
     * @returns
     */
    static RemoveItemIfNotContains(item: Types.ObjectId | null, items: Nullable<Types.ObjectId[]>): Types.ObjectId[];
}
export default ContainsUtil;
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