import { ComponentFactory, ComponentFactoryResolver, ElementRef, OnChanges, Renderer2, SimpleChanges, ViewContainerRef } from '@angular/core';
import { MatSpinner } from '@angular/material/progress-spinner';
export declare class SubmitButtonDirective implements OnChanges {
    private el;
    private viewContainerRef;
    private renderer;
    private componentFactoryResolver;
    spinner: MatSpinner;
    spinnerContainer: any;
    factory: ComponentFactory<MatSpinner>;
    isLoading: boolean;
    constructor(el: ElementRef, viewContainerRef: ViewContainerRef, renderer: Renderer2, componentFactoryResolver: ComponentFactoryResolver);
    ngOnChanges(changes: SimpleChanges): void;
}