/**
* @license
* Copyright 2019 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import '../../focus/md-focus-ring.js';
import '../../ripple/ripple.js';
import { LitElement, PropertyValues } from 'lit';
import { createValidator, getValidityAnchor } from '../../labs/behaviors/constraint-validation.js';
import { getFormState, getFormValue } from '../../labs/behaviors/form-associated.js';
import { CheckboxValidator } from '../../labs/behaviors/validators/checkbox-validator.js';
declare const checkboxBaseClass: import("../../labs/behaviors/mixin.js").MixinReturn<import("../../labs/behaviors/mixin.js").MixinReturn<import("../../labs/behaviors/mixin.js").MixinReturn<(abstract new (...args: any[]) => import("../../labs/behaviors/element-internals.js").WithElementInternals) & typeof LitElement & import("../../labs/behaviors/form-associated.js").FormAssociatedConstructor, import("../../labs/behaviors/form-associated.js").FormAssociated>, import("../../labs/behaviors/constraint-validation.js").ConstraintValidation>>;
/**
* A checkbox component.
*
*
* @fires change {Event} The native `change` event on
* [`<input>`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/change_event)
* --bubbles
* @fires input {InputEvent} The native `input` event on
* [`<input>`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/input_event)
* --bubbles --composed
*/
export declare class Checkbox extends checkboxBaseClass {
/** @nocollapse */
static shadowRootOptions: {
delegatesFocus: boolean;
mode: ShadowRootMode;
slotAssignment?: SlotAssignmentMode;
};
/**
* Whether or not the checkbox is selected.
*/
checked: boolean;
/**
* Whether or not the checkbox is indeterminate.
*
* https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/checkbox#indeterminate_state_checkboxes
*/
indeterminate: boolean;
/**
* When true, require the checkbox to be selected when participating in
* form submission.
*
* https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/checkbox#validation
*/
required: boolean;
/**
* The value of the checkbox that is submitted with a form when selected.
*
* https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/checkbox#value
*/
value: string;
private prevChecked;
private prevDisabled;
private prevIndeterminate;
private readonly input;
constructor();
protected update(changed: PropertyValues<Checkbox>): void;
protected render(): import("lit-html").TemplateResult<1>;
private handleInput;
private handleChange;
disabled: boolean;
name: string;
[getFormValue](): string;
[getFormState](): string;
formResetCallback(): void;
formStateRestoreCallback(state: string): void;
[createValidator](): CheckboxValidator;
[getValidityAnchor](): HTMLInputElement;
}
export {};