I wanted to use UnitsNet in my C# project and saw in the documentation that the authors are using their classes to parse units of measure from string like this:
var usEnglish = new CultureInfo("en-US");
Mass kg = Mass.Parse(usEnglish, "1.0 kg");
It turned out that the UnitsNet documentation was a little bit ahead of the time.
The version I have been pulling from NuGet with
was 3.4.0, and the changes I was trying to use, mentioned in the question were first introduced in version 3.5.0.