@Deprecated(since = "2020.2", forRemoval = true)
  public Collection<InstalledPackage> getInstalledPackages() throws IOException {
    throw new AbstractMethodError("The method is deprecated. Please use `getInstalledPackagesList`.");
  }
@Deprecated(since = "2020.2", forRemoval = true)
  public Collection<InstalledPackage> getInstalledPackages()