import { AfterViewInit, Renderer2 } from '@angular/core';
import { NgControl } from '@angular/forms';
import { NgxGovukUtilsService } from 'ngx-govuk';
import { NgxGovukTextInput } from 'ngx-govuk/text-input';
import * as i0 from "@angular/core";
/**
 * A commom wrapper around form controls and directives.
 *
 * The content slot expects a single form component / directive with an optional associated form control.
 *
 * Valid content children are NgxGovukTextInput.
 *
 * @selector ngx-govuk-form-group
 *
 */
export declare class NgxGovukFormGroup implements AfterViewInit {
    private renderer;
    private utilsService;
    /**
     * The label text for the form group.
     *
     * @required
     */
    label: import("@angular/core").InputSignal<string>;
    /**
     * If you're asking just one question, you can set the contents of the <label> as the page heading.
     *
     * @initialValue false
     */
    asPageHeading: import("@angular/core").InputSignal<boolean>;
    /**
     * Hint text that can provide help information.
     */
    hint: import("@angular/core").InputSignal<string | undefined>;
    /**
     * Prefix to add before the field.
     */
    prefix: import("@angular/core").InputSignal<string | undefined>;
    /**
     * Prefix to add before the field.
     */
    suffix: import("@angular/core").InputSignal<string | undefined>;
    /**
     * Error message to display when the form contrrol is invalid.
     */
    errorMessage: import("@angular/core").InputSignal<string | undefined>;
    isInvalid: import("@angular/core").WritableSignal<boolean>;
    control: import("@angular/core").Signal<NgControl | undefined>;
    fieldEl: import("@angular/core").Signal<NgxGovukTextInput | undefined>;
    ariaDescribedBy: import("@angular/core").Signal<string>;
    fieldId: string;
    hintId: string;
    errorId: string;
    constructor(renderer: Renderer2, utilsService: NgxGovukUtilsService);
    ngAfterViewInit(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgxGovukFormGroup, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NgxGovukFormGroup, "ngx-govuk-form-group", never, { "label": { "alias": "label"; "required": true; "isSignal": true; }; "asPageHeading": { "alias": "asPageHeading"; "required": false; "isSignal": true; }; "hint": { "alias": "hint"; "required": false; "isSignal": true; }; "prefix": { "alias": "prefix"; "required": false; "isSignal": true; }; "suffix": { "alias": "suffix"; "required": false; "isSignal": true; }; "errorMessage": { "alias": "errorMessage"; "required": false; "isSignal": true; }; }, {}, ["control", "fieldEl"], ["*"], true, never>;
}