import { DragEvent } from "react";
import { FilesValidator } from "../validators";
export declare const toArray: (obj: any) => any[];
export declare const containsFiles: (e: DragEvent) => boolean | FileList | null;
export declare const extractFiles: (e: DragEvent) => File[];
export declare const validateFiles: ({ files, validate, }: {
    files: ReadonlyArray<File>;
    validate: ReadonlyArray<FilesValidator>;
}) => string[];