/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */
import { Direction, Directionality } from '@angular/cdk/bidi';
import { ChangeDetectorRef, ElementRef, OnChanges, OnDestroy, OnInit, SimpleChanges } from '@angular/core';
import { ControlValueAccessor } from '@angular/forms';
import { BooleanInput, NzSafeAny, NzSizeLDSType, OnChangeType, OnTouchedType } from 'ng-zorro-antd/core/types';
import { NzRadioService } from './radio.service';
export declare type NzRadioButtonStyle = 'outline' | 'solid';
export declare class NzRadioGroupComponent implements OnInit, ControlValueAccessor, OnDestroy, OnChanges {
    private cdr;
    private nzRadioService;
    private elementRef;
    private directionality;
    static ngAcceptInputType_nzDisabled: BooleanInput;
    private value;
    private destroy$;
    onChange: OnChangeType;
    onTouched: OnTouchedType;
    nzDisabled: boolean;
    nzButtonStyle: NzRadioButtonStyle;
    nzSize: NzSizeLDSType;
    nzName: string | null;
    dir: Direction;
    constructor(cdr: ChangeDetectorRef, nzRadioService: NzRadioService, elementRef: ElementRef, directionality: Directionality);
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    writeValue(value: NzSafeAny): void;
    registerOnChange(fn: OnChangeType): void;
    registerOnTouched(fn: OnTouchedType): void;
    setDisabledState(isDisabled: boolean): void;
}