@NotNull
  private String wrapWithPrefix(@NotNull String name) {
    if (isReturnedVal()) {
      // return values are saved in dictionary on Python side, so the variable's name should be transformed
      return RETURN_VALUES_PREFIX + "[\"" + name + "\"]";
    }
    else {
      return name;
    }
  }
@NotNull
  private String wrapWithPrefix(@NotNull String name)