import { Syntax } from "../types";
import { HighlightStyle } from "@codemirror/highlight";
export declare const highlightStyle: HighlightStyle;
export declare class CodeElement extends HTMLElement {
    static get observedAttributes(): string[];
    syntax?: Syntax;
    code?: string;
    private view;
    get program(): string;
    constructor();
    connectedCallback(): void;
    attributeChangedCallback(name: string, oldValue: any, newValue: any): void;
    setProgram(syntax: Syntax, code: string): void;
}