import { FormBuilder, FormGroup } from '@angular/forms';
/**
 * The form validator service creates a {@link FormGroup} object from a viewmodel. If the viewmodel
 * has been decorated with validation decorators the validators are created accordingly.
 *
 * The simplest way is creating a class with properties and add decorators, such as
 * {@link StringLength}. The service will than create a {@link FormGroup} that contains a}validator
 * of type {@link StringLength} for the property the decorator is written}on.
 *
 * The decorators provide properties for additional information, such as a custom error message.
 *
 */
export declare class FormValidatorService {
    private fb;
    constructor(fb: FormBuilder);
    /**
     * Call this method to actually create the FormGroup object. Provide a valid model type.
     *
     * @param target A valid model type.
     * @returns A FormGroup with validators
     */
    build(target: any): FormGroup;
}