Possible null reference argument for parameter 'uriString' in 'Uri.Uri(string uriString, UriKind uriKind)'.

Possible null reference argument for parameter 'uriString' in 'Uri.Uri(string uriString, UriKind uriKind)'.

Converting null literal or possible null value to non-nullable type.

Unreachable code detected

Converting null literal or possible null value to non-nullable type.

Unreachable code detected

Converting null literal or possible null value to non-nullable type.

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

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