import { RuntimeOptions } from "./types.js";
export declare class RuntimeInjector {
    private options;
    private runtimeInfo;
    private config;
    constructor(options: RuntimeOptions);
    private updateResolvedVersion;
    private fetchLatestRtkRelease;
    private resolveRtkVersion;
    private isAlreadyInstalled;
    private downloadFile;
    private getProxyConfigForUrl;
    private getProxyOption;
    private extractTarGz;
    private extractZip;
    private cleanupRuntime;
    inject(): Promise<void>;
}