@NotNull
  public static Map<String, PyExpression> dictValue(@NotNull PyDictLiteralExpression dict) {
    Map<String, PyExpression> result = Maps.newLinkedHashMap();
    for (PyKeyValueExpression keyValue : dict.getElements()) {
      PyExpression key = keyValue.getKey();
      PyExpression value = keyValue.getValue();
      if (key instanceof PyStringLiteralExpression) {
        result.put(((PyStringLiteralExpression)key).getStringValue(), value);
      }
    }
    return result;
  }
@NotNull
  public static Map<String, PyExpression> dictValue(@NotNull PyDictLiteralExpression dict)