import { FormControlValue } from '../internal/types.js';
import { FormControlMixinInstance } from './index.js';
type Constructor = (new (...args: any[]) => HTMLElement & {
    connectedCallback?(): void;
    attributeChangedCallback?(name: string, oldValue: string | null, newValue: string | null): void;
    requestUpdate?(name?: string, oldValue?: unknown): void;
}) & {
    observedAttributes?: string[];
};
export type SelectFormControlValue = Extract<FormControlValue, string>;
export interface SelectFormControlMixinInstance extends FormControlMixinInstance<SelectFormControlValue> {
    /**
     * The number of options available in the select.
     */
    length: number;
    /**
     * The options available in the select.
     */
    options: HTMLOptionElement[];
    /**
     * The index of the selected option.
     */
    selectedIndex: number;
    /**
     * The selected options.
     */
    selectedOptions: HTMLOptionElement[];
    /**
     * The select control type.
     */
    type: 'select-one';
    /**
     * The selected value.
     * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/select#value
     * @attr value
     * @reflect
     */
    value: SelectFormControlValue;
    updateSelectState(): void;
}
export type SelectFormControlMixinReturn<TBase extends Constructor> = (new (...args: ConstructorParameters<TBase>) => InstanceType<TBase> & SelectFormControlMixinInstance) & {
    formAssociated: boolean;
    observedAttributes: string[];
} & Omit<TBase, 'prototype'>;
/**
 * @description A mixin that adds native single-select form control behavior.
 */
export declare function SelectFormControlMixin<TBase extends Constructor>(SuperClass: TBase): SelectFormControlMixinReturn<TBase>;
export {};