import { TemplateResult } from 'lit';
import { WebComponent } from '../../helpers';
import { AnyArena } from '../../interfaces';
export declare class ArenaBackImage extends WebComponent {
    src: string | undefined;
    arena: AnyArena | undefined;
    loading: boolean;
    static styles: import("lit").CSSResult;
    get input(): HTMLInputElement | undefined;
    render(): TemplateResult;
    protected getScr(src: string, width?: number, height?: number): string;
    protected onLoad(): void;
    protected onChange(): void;
    protected upload(file: File): void;
}