import { Platform } from 'ionic-angular';
export declare class FormBuilderProvider {
    platform: Platform;
    avalibleValidators: object;
    constructor(platform: Platform);
    detectDevice(): boolean;
    isEmail(email: any): boolean;
    checkAgainstCustomRegex(regex: any, string: any): any;
    isNumbersOnly(string: any): boolean;
    isEmpty(string: any): boolean;
    validateAnswer(question: any, string: any): boolean;
}