import { NControlsValidationErrors, NInputErrorMessages } from "./public_components";
import { ErrorMessagesFactory } from "../services/error-messages-factory.service";
export declare function isApple(): boolean;
export declare const isIE: boolean;
export declare function buildModifierText(prefix: string, mod: string): string;
export declare function buildErrorMessage(errors: NControlsValidationErrors, factory: ErrorMessagesFactory, messages: NInputErrorMessages | undefined): string;
export declare function isMobile(): boolean;
export declare function isTouch(): boolean;