import { ElementRef, Injector } from '@angular/core';
import { ValueAccessor } from '@ionic/angular/common';
import * as i0 from "@angular/core";
export declare class NumericValueAccessorDirective extends ValueAccessor {
    private el;
    constructor(injector: Injector, el: ElementRef<HTMLInputElement | HTMLIonRangeElement>);
    handleInputEvent(el: HTMLIonInputElement | HTMLIonRangeElement): void;
    registerOnChange(fn: (_: number | null) => void): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NumericValueAccessorDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<NumericValueAccessorDirective, "ion-input[type=number],ion-range", never, {}, {}, never, never, false, never>;
}