import '@components/icon/icon.js';
import { FormBase } from '@internal/components/formBase.js';
import type { FormFieldBaseProps } from '@internal/types/formField.js';
import { type CSSResultGroup } from 'lit';
/**
 * The `<skf-checkbox>` component is used to create a checkbox input
 *
 * @documentation See [InVision DSM](https://skf.invisionapp.com/dsm/ab-skf/4-web-applications/nav/5fa7caf78c01200018354495/asset/6229d63d9fe16020a60657e5) for design principles
 *
 * @attribute {boolean} disabled - If true, sets disabled state
 * @attribute {boolean} required - If true, value is required or must be checked for the form to be submittable
 *
 * @event change {object} - When the value of the input changes
 *
 * @slot Default - Alternatively, you can use the `label` attribute
 *
 * @tagname skf-checkbox
 */
export declare class SkfCheckbox extends FormBase implements FormFieldBaseProps {
    static styles: CSSResultGroup;
    /** @internal */
    private _initialChecked;
    /** If defined, outputs helping hints in console */
    debug?: boolean;
    /** If true, outputs helping hints in console */
    checked?: boolean;
    /** If true, forces component to invalid state until removed */
    customInvalid?: boolean;
    /** If true, hides the label visually */
    hideLabel?: boolean;
    /** If true and the checkbox is unchecked, the checkbox will appear indeterminate */
    indeterminate?: boolean;
    /** If defined, sets the input's label. Alternatively, you can use the `label` attribute. */
    label?: string;
    /** If defined, adds name to the input-element */
    name?: string;
    /** If defined, renders an alternative A11y text for the asterisk */
    requiredLabel?: string;
    /** Size of the checkbox */
    size: 'sm' | 'md';
    /** If defined, styles checkbox using provided severity */
    severity?: FormFieldBaseProps['severity'];
    /** If defined, displays valid state after interaction */
    showValid?: boolean;
    /** The current value of the input field  */
    value: string;
    /** @internal */
    /** True if the internal state is invalid  */
    private _invalid;
    /** @internal */
    private $input?;
    connectedCallback(): void;
    willUpdate(changedProperties: Map<string | number | symbol, unknown>): void;
    protected firstUpdated(): void;
    updated(changedProperties: Map<string | number | symbol, unknown>): void;
    attributeChangedCallback(name: string, oldValue: string | null, newValue: string | null): void;
    debugOutput(): void;
    /** @internal */
    private _validateInput;
    /** @internal */
    private _resetValue;
    /** @internal */
    private _renderIcon;
    render(): import("lit").TemplateResult<1>;
}