public async Task <int> NumberOfTodos()
        {
            var request = new NumberOfTodosQuery
            {
                BoardId = Id
            };

            var queryResult = await processor.Query(request);

            return(queryResult.NumberOfTodos);
        }
        public async Task <int> NumberOfUndoneTodos()
        {
            var request = new NumberOfTodosQuery
            {
                BoardId    = Id,
                TodoFilter = NumberOfTodosQuery.Filter.UNDONE
            };

            var queryResult = await processor.Query(request);

            return(queryResult.NumberOfTodos);
        }