<PackageReference Include="NUnit" Version="4.5.1" />

NUnit.Framework.Internal.Commands.DisposeFixtureCommand

OneTimeTearDownCommand performs any teardown actions specified for a suite and calls Dispose on the user test object, if any.
namespace NUnit.Framework.Internal.Commands { public class DisposeFixtureCommand : AfterTestCommand { public DisposeFixtureCommand(TestCommand innerCommand); } }