Inheritance: IPolicies
        public void SetUp()
        {
            fixture = new FixtureGraph();
            fixture.AddStructure("Hidden1", new Sentence());
            fixture.AddStructure("Hidden2", new Sentence());
            fixture.AddStructure("NotHidden3", new Sentence());
            fixture.AddStructure("NotHidden4", new Sentence());

            var constraints = new Policies();
            constraints.HideGrammar("Hidden1");
            constraints.HideGrammar("Hidden2");

            fixture.Policies = constraints;
        }
 public void SetUp()
 {
     model = new Policies();
 }