import { PipeTransform } from '@angular/core';
import { Nullable } from '@angular-ru/cdk/typings';
import * as i0 from "@angular/core";
export declare class HasAtMostOneItemPipe implements PipeTransform {
    transform<EntryType>(array?: Nullable<EntryType[]>): array is [EntryType] | [];
    static ɵfac: i0.ɵɵFactoryDeclaration<HasAtMostOneItemPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<HasAtMostOneItemPipe, "hasAtMostOneItem">;
}
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