import { SimpleChanges } from '@angular/core';
import { AbstractControl } from '@angular/forms';
/**
 * Helper function to determine if a specific value has changed
 *
 * @param changes - The object of changes
 * @param path - A string with keys defined, separate with '.'
 * @param control - The formControl
 * @returns True if the value has changed
 *
 * @example
 * ...
 *   AngularInput:
 *   public myInput;
 *   AngularInput:
 *   public myFormControl;
 *
 *   ngOnChanges(changes: SimpleChanges) {
 *     // This will update the form control's value whenever the `@Input` value changes:
 *     updateControlOnInputChanges(changes, 'myInput', this.myFormControl));
 *   }
 * ...
 */
export declare function updateControlOnInputChanges(changes: SimpleChanges, path: string, control: AbstractControl | null): boolean;