@NotNull
    private static List<LookupElement> getKeysFromStarArgument(@NotNull final PyStarArgument arg) {
      final PyDictLiteralExpression dict = ObjectUtils.chooseNotNull(PsiTreeUtil.getChildOfType(arg, PyDictLiteralExpression.class),
                                                                     getDictFromReference(arg));

      return dict != null ? getElementsFromDict(dict) : Collections.emptyList();
    }
@NotNull
    private static List<LookupElement> getKeysFromStarArgument(@NotNull final PyStarArgument arg)