@Override
  @Nullable
  public String getTypeExpressionText() {
    PyTypeAliasStatementStub stub = getStub();

    if (stub != null) {
      return stub.getTypeExpressionText();
    }
    else {
      PyExpression typeExpression = getTypeExpression();
      return typeExpression != null ? typeExpression.getText() : null;
    }
  }
@Override
  @Nullable
  public String getTypeExpressionText()