import { AfterContentInit, QueryList } from '@angular/core';
import { ControlValueAccessor, NgControl } from '@angular/forms';
import { RadioComponent } from '../radio/radio.component';
export declare class RadioGroupComponent implements ControlValueAccessor, AfterContentInit {
    private readonly controlDirective;
    /**
     * The currently selected child radio button value
     */
    private currentValue;
    /**
     * The name of the radio group for use within a form
     */
    set name(name: string);
    get name(): string;
    /**
     * The ID of any element that labels the radio group.
     */
    ariaLabelledBy: string;
    get valid(): boolean;
    get touched(): boolean;
    childRadioButtons: QueryList<RadioComponent>;
    /**
     * The registered callback function called when an input event occurs on the input element.
     */
    onChange: (value: any) => void;
    /**
     * The registered callback function called when an input event occurs on the input element.
     */
    onTouch: () => void;
    constructor(controlDirective: NgControl);
    /**
     * @ignore
     */
    ngAfterContentInit(): void;
    /**
     * @ignore
     */
    private updateName;
    /**
     * @ignore
     */
    private updateDisability;
    /**
     * @ignore
     */
    private registerChangeCaptor;
    /**
     * @ignore
     */
    private _name;
    /**
     * @ignore
     */
    private _disabled;
    /**
     * INTERNAL
     * Method which is called when any child radio button changes value
     */
    captureChildChangeEvent(radioButton: RadioComponent, selected: boolean): void;
    /**
     * INTERNAL
     * Run a function against all child radio buttons
     */
    private updateChild;
    /**
     * Registers a function called when the control value changes.
     * Used by ReactiveForms to check for changes
     */
    registerOnChange(fn: (value: any) => {}): void;
    /**
     * Registers a function called when the control is touched.
     * Used by ReactiveForms to check for touched-ness
     */
    registerOnTouched(fn: any): void;
    /**
     * Sets the "disabled" property on the input element.
     * Used by ReactiveForms for setting the disablement of the element.
     */
    setDisabledState(isDisabled: boolean): void;
    /**
     * Sets the "value" property on the input element.
     * Used by ReactiveForms for setting the element value.
     */
    writeValue(obj: any): void;
}