public void TryGetBelongingCommand()
        {
            IServiceProvider provider = GetServiceProvider();
            ICommandFinder   finder   = GetCommandFinder(provider);

            if (finder.TryGetCommand("list", typeof(SpecificCommandSet), out ICommand? listCommand))
            {
                Assert.True(true);
                Assert.NotNull(listCommand);
            }
            else
            {
                Assert.True(false);
                Assert.Null(listCommand);
            }
        }
        public void TryGetCommand()
        {
            IServiceProvider provider = GetServiceProvider();
            ICommandFinder   finder   = GetCommandFinder(provider);

            if (finder.TryGetCommand("say", out ICommand? sayCommand))
            {
                Assert.True(true);
                Assert.NotNull(sayCommand);
            }
            else
            {
                Assert.True(false);
                Assert.Null(sayCommand);
            }
        }