<PackageReference Include="NUnit" Version="4.2.2" />

NUnit.Framework.Interfaces.ICombiningStrategy

public interface ICombiningStrategy
CombiningStrategy is the abstract base for classes that know how to combine values provided for individual test parameters to create a set of test cases.
namespace NUnit.Framework.Interfaces { public interface ICombiningStrategy { IEnumerable<ITestCaseData> GetTestCases(IEnumerable[] sources); } }