import '../templating.js';
import { Changes } from '@joist/observable';
declare global {
    interface HTMLElementTagNameMap {
        'usa-file-input': USAFileInputElement;
    }
}
export declare class USAFileInputElement extends HTMLElement {
    #private;
    static formAssociated: boolean;
    accessor name: string;
    accessor multiple: boolean;
    accessor accept: string;
    accessor url: string;
    accessor required: boolean;
    accessor disabled: boolean;
    accessor files: FileList | null;
    connectedCallback(): void;
    onURLChanged(changes: Changes<this>): Promise<void>;
    formValuesChange(changes: Changes<this>): Promise<void>;
    syncFormValues(): Promise<void>;
    onInputChange(e: Event): void;
    onDragEnter(): void;
    onDragLeave(): void;
    onDrop(e: DragEvent): void;
}