import { type Injector } from '@angular/core';
import { type AbstractControl, type AbstractControlDirective } from '@angular/forms';
import { Observable } from 'rxjs';
/**
 * Turns form control value changes into ReplaySubject(1)
 * TODO(v6): refactor it after signal forms are fully supported (Angular >= 22)
 */
export declare function tuiControlValue<T>(control?: AbstractControl | AbstractControlDirective | null, // TODO: add `InteropNgControl` as possible type after update to Angular 21+
injector?: Injector): Observable<T>;