import { BaseEntity } from 'ivy.angular.data';
import { BaseEnumEntity } from 'ivy.angular.data';
export declare class CollectionHelper {
    range(count: number, start?: number): number[];
    max(col: number[]): number;
    maxDate(col: Date[]): Date;
    min(col: number[]): number;
    minDate(col: Date[]): Date;
    firstOrDefault<T>(col: T[]): T;
    remove<T>(coll: T[], item: T): void;
    removeEntity<T extends BaseEntity>(coll: T[], item: T): void;
    getEntityById<T extends BaseEntity>(coll: T[], id: number): T;
    getEnumEntityByName<T extends BaseEnumEntity>(coll: T[], name: string): T;
    contains<T>(coll: T[], item: T): boolean;
    containsEntity<T extends BaseEntity>(coll: T[], item: T): boolean;
    addOrRemove<T>(coll: T[], item: T): void;
    addOrRemoveEntity<T extends BaseEntity>(coll: T[], item: T): void;
    intersect<T>(coll1: T[], coll2: T[]): T[];
    intersectEntities<T extends BaseEntity>(coll1: T[], coll2: T[]): T[];
    exclude<T>(coll1: T[], coll2: T[]): T[];
    excludeEntities<T extends BaseEntity>(coll1: T[], coll2: T[]): T[];
    private internalMax;
    private internalMin;
}