import { AbstractInputElement, InputState } from './AbstractInput';
export declare class Upload extends AbstractInputElement<HTMLInputElement> {
    static nativeName: string;
    constructor();
    connectedCallback(): void;
    template(): string;
    stateChangeCallback(oldValue: InputState, newValue: InputState): void;
    get $container(): Element;
    get $span(): HTMLSpanElement;
    get $el(): HTMLInputElement;
}