import { type DirectiveResult } from 'lit/directive.js';
import type { ValueAccessorFactory } from '../value-accessors/value-accessor-factory';
import type { AttachableComponent } from './attachable-component';
import type { ValidationErrors, ValidatorFunction } from '../common/types';
import type { ValidationErrorMessageWriter } from '../validation/validation-error-message-writer';
import type { FormControl, FormControlOptions, FormControlValidationOptions } from './form-control';
import { FormComponentImpl } from './form-component-impl';
import { Observable } from 'rxjs';
import { ConnectedEvent } from '../common/types';
/**
 * @internal
 */
export declare class FormControlImpl<TValue, TElement extends HTMLElement> extends FormComponentImpl<TValue> implements FormControl<TValue, TElement>, AttachableComponent<TElement> {
    private readonly _onConnected;
    private readonly _disableNativeValidation;
    private readonly _valueAccessorFactory;
    private readonly _validationErrorMessageWriter;
    private readonly _validators;
    private readonly _options;
    private _defaultValue;
    private _value;
    private _isDirty;
    private _isValid;
    private _errors;
    private _valueAccessorTemporary;
    private _valueAccessor;
    constructor(valueAccessorFactory: ValueAccessorFactory, validationErrorMessageWriter: ValidationErrorMessageWriter, defaultValue?: TValue | null, options?: FormControlOptions);
    get onConnected(): Observable<ConnectedEvent<TElement>>;
    get kind(): string;
    get elements(): ReadonlySet<TElement>;
    get value(): TValue | null;
    set value(value: TValue | null);
    get validators(): readonly ValidatorFunction[];
    get errors(): ValidationErrors;
    get isValid(): boolean;
    get isDirty(): boolean;
    get isEmpty(): boolean;
    clone(): FormControl<TValue, TElement>;
    reset(): void;
    validate(options?: FormControlValidationOptions): boolean;
    focus(): void;
    enable(): void;
    disable(): void;
    attach(): DirectiveResult;
    _destroy(): void;
    _connectElement(element: TElement): Promise<void>;
    _disconnectElement(element: TElement): void;
    private initializeValue;
    private updateValue;
    private writeValue;
    private doValidate;
}