How to use Exclude in FluentAssertions for property in collection?

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What about?

expected.ShouldBeEquivalentTo(actualA, options => options.Excluding(su => 
   (su.RuntimeType == typeof(ClassB)) && (su.PropertyPath.EndsWith("Id")));`

Or you could do a RegEx match on the property path, such as

expected.ShouldBeEquivalentTo(actualA, options => options.Excluding(su => (Regex.IsMatch
   ("Children\[.+\]\.ID"));

I actually like that last one, but the regex stuff makes it a bit difficult to read. Maybe I should extend ISubjectInfo with a method to match the path against a wildcard pattern, so that you can do this:

expected.ShouldBeEquivalentTo(actualA, options => options
  .Excluding(su => su.PathMatches("Children[*].ID")));