import { TypedSimpleChanges } from "./effect-on-changes$";
import { Observable } from "rxjs";
import * as i0 from "@angular/core";
/**
 * @internal
 *
 * @description
 */
declare class OnChanges<I extends Record<string, any>> {
    private readonly source$$;
    private readonly initialized$$;
    isInitialized$: Observable<boolean>;
    /**
     * @publicApi
     * Emits the changes
     */
    changes$: Observable<Partial<I>>;
    /**
     * @publicApi
     * Emits the accumulated changes
     */
    changesState$: Observable<I>;
    /**
     * @publicApi
     * @description
     * Connects the changes to the state
     *
     * @example
     *  ngOnChanges(changes: TypedSimpleChanges<any>
     *  this.state.connect$(changes);
     *  }
     * @param changes
     */
    connect$<I>(changes: TypedSimpleChanges<I> | undefined): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<OnChanges<any>, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<OnChanges<any>>;
}
export declare function provideOnChanges$<T extends Record<string, any>>(): {
    new (): OnChanges<T>;
};
export declare function injectOnChanges$<T extends Record<string, any>>(): OnChanges<any>;
export {};