import { type AsyncFileListValidator, type UiOptionsRegistry, type UiSchemaRoot } from "../form/main.js";
declare module "../form/index.js" {
    interface UiOptions {
        maxFileSizeBytes?: number;
    }
}
export interface FileSizeErrorOptions {
    file: File;
    maxSizeBytes: number;
}
export type FileSizeValidatorOptions = {
    uiSchema?: UiSchemaRoot;
    uiOptionsRegistry?: UiOptionsRegistry;
};
export declare function createFileSizeValidator(error: (options: FileSizeErrorOptions) => string, { uiSchema: uiSchemaRoot, uiOptionsRegistry, }?: FileSizeValidatorOptions): AsyncFileListValidator;
export declare function formatFileSize(bytes: number): string;