import * as ts from "typescript";
export declare class ArrayUtils {
    private constructor();
    static isNullOrEmpty<T>(a: (T[] | undefined)): a is undefined;
    static getUniqueItems<T>(a: T[]): T[];
    static removeFirst<T>(a: T[], item: T): boolean;
    static find<T>(items: T[] | IterableIterator<T>, condition: (item: T) => boolean): T | undefined;
    static from<T>(items: IterableIterator<T> | ts.Iterator<T>): T[];
    static toIterator<T>(items: T[]): IterableIterator<T>;
    static binaryInsert<T>(items: T[], newItem: T, isGreaterThan: (item: T) => boolean): void;
    static binarySearch<T>(items: T[], isEqual: (item: T) => boolean, isGreaterThan: (item: T) => boolean): number;
}