import type { ToolSession } from "../../tools/index.js";
import { type BackendAvailability, type ExecutorBackendExecOptions, type ExecutorBackendResult } from "../backend.js";
export declare function namespaceSessionId(sessionId: string): string;
/** Resolve the retained JavaScript kernel identity owned by a tool session. */
export declare function resolveJsKernelIdentity(session: ToolSession): {
    sessionKey: string;
    ownerId: string | undefined;
};
declare const _default: {
    id: "js";
    label: string;
    highlightLang: string;
    checkAvailability(_session: ToolSession): Promise<BackendAvailability>;
    execute(code: string, opts: ExecutorBackendExecOptions): Promise<ExecutorBackendResult>;
};
export default _default;