import { SimpleChanges } from '@angular/core';
export interface TypedSimpleChanges<I> extends SimpleChanges {
}
export type OnChangesEffect<I> = (changes: Partial<I>) => void;
export interface EffectOnChangesConfig {
    allowUndefined?: boolean;
    allowNull?: boolean;
}
export declare function effectOnChanges$<I extends Record<string, any>>(changes: TypedSimpleChanges<I>, cb: OnChangesEffect<I>): void;
export declare function effectOnChanges$<I extends Record<string, any>, K extends keyof I>(changes: TypedSimpleChanges<I>, key: K, cb: OnChangesEffect<I>): void;