import type { CSSResultArray, PropertyDeclarations, TemplateResult } from 'lit-element';
import { InternalEditableControl } from '../InternalEditableControl/InternalEditableControl';
/**
 * Internal control displaying editable source code.
 *
 * @since 1.23.0
 * @element foxy-internal-source-control
 */
export declare class InternalSourceControl extends InternalEditableControl {
    static get properties(): PropertyDeclarations;
    static get styles(): CSSResultArray;
    private __isErrorVisible;
    private __hovered;
    private __focused;
    renderControl(): TemplateResult;
    updated(changes: Map<keyof this, unknown>): void;
    protected get _value(): string;
    protected set _value(newValue: string);
}