import { FileValidationConfig, ValidationResult } from '../models/file-item.model';
import * as i0 from "@angular/core";
export declare class FileValidationService {
    private defaultConfig;
    constructor();
    validateFiles(files: File[], config?: FileValidationConfig): ValidationResult;
    private formatSize;
    private formatAllowedTypes;
    static ɵfac: i0.ɵɵFactoryDeclaration<FileValidationService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<FileValidationService>;
}