import { Observable } from "rxjs";
import { ObservableArray } from "../interfaces";
export declare class ObservableArrayImpl<T> extends Array<T> implements ObservableArray<T> {
    private readonly _pop$;
    readonly pop$: Observable<T | undefined>;
    private readonly _push$;
    readonly push$: Observable<T[]>;
    private readonly _concat$;
    readonly concat$: Observable<(T | ConcatArray<T>)[]>;
    private readonly _reverse$;
    readonly reverse$: Observable<this>;
    private readonly _shift$;
    readonly shift$: Observable<T | undefined>;
    private readonly _sort$;
    readonly sort$: Observable<this>;
    private readonly _splice$;
    readonly splice$: Observable<T[]>;
    private readonly _unshift$;
    readonly unshift$: Observable<T[]>;
    readonly change$: Observable<this>;
    readonly values$: Observable<this>;
    pop(): T | undefined;
    push(...items: T[]): number;
    concat(...items: (T | ConcatArray<T>)[]): T[];
    reverse(): T[];
    shift(): T | undefined;
    sort(compareFn?: ((a: T, b: T) => number) | undefined): this;
    splice(start: number, deleteCount: number, ...items: T[]): T[];
    unshift(...items: T[]): number;
}