@Nullable
    static Negated create(@Nullable PsiExpression maybeNegatedExpression) {
      boolean equal = true;
      PsiExpression expression = PsiUtil.skipParenthesizedExprDown(maybeNegatedExpression);
      if (expression instanceof PsiPrefixExpression prefixExpression) {
        if (JavaTokenType.EXCL.equals(prefixExpression.getOperationTokenType())) {
          equal = false;
          expression = PsiUtil.skipParenthesizedExprDown(prefixExpression.getOperand());
        }
      }
      return expression != null ? new Negated(expression, equal) : null;
    }
@Nullable
    static Negated create(@Nullable PsiExpression maybeNegatedExpression)