import { KottiFieldFileUpload, Shared } from './types';
export declare const isSelectingMultipleFilesWhenNotAllowed: (allowMultiple: boolean, selectionSize: number) => boolean;
/**
 * Validates a File Item
 * @param param0.extensions Allowed file extensions
 * @param param0.fileName The name of the file (muss include file extension)
 * @param param0.fileSize The size of the file in bytes
 * @param param0.maxFileSize The maximum file size allowed in bytes
 * @returns Validation.SUCCESS if the file is valid, else either
 * Validation.INVALID_EXTENSION or Validation.MAX_SIZE_EXCEEDED.
 * Validation.INVALID_EXTENSION has higher priority.
 */
export declare const validateFile: ({ extensions, fileName, fileSize, maxFileSize, }: {
    extensions: KottiFieldFileUpload.PropsInternal["extensions"];
    fileName: string;
    fileSize: number;
    maxFileSize: KottiFieldFileUpload.PropsInternal["maxFileSize"];
}) => Shared.Validation;
/**
 * Checks whether Value is valid
 * @param value The value to evaluate
 * @returns true if at least one selected file is valid, else false
 */
export declare const isValidValue: (value: KottiFieldFileUpload.ValueInternal) => boolean;