@Nullable
  @Contract("null, _->null")
  public static String getDefaultValuePartInSignature(@Nullable String defaultValue, boolean parameterRenderedAsTyped) {
    if (defaultValue == null) return null;

    final StringBuilder sb = new StringBuilder();

    // According to PEP 8 equal sign should be surrounded by spaces if annotation is present
    sb.append(parameterRenderedAsTyped ? " = " : "=");

    final Pair<String, String> quotes = PyStringLiteralCoreUtil.getQuotes(defaultValue);
    if (quotes != null) {
      final String value = defaultValue.substring(quotes.getFirst().length(), defaultValue.length() - quotes.getSecond().length());
      sb.append(quotes.getFirst());
      StringUtil.escapeStringCharacters(value.length(), value, sb);
      sb.append(quotes.getSecond());
    }
    else {
      sb.append(defaultValue);
    }

    return sb.toString();
  }
@Nullable
  @Contract("null, _->null")
  public static String getDefaultValuePartInSignature(@Nullable String defaultValue, boolean parameterRenderedAsTyped)