Non-nullable property 'field' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Non-nullable field 'value' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Non-nullable field 'field' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Using directive is unnecessary. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/ide0005)

Possible null reference return.

Possible null reference return.