public void Serialize(CanvasDocument document)
        {
            var objects = Mapper.Map <List <ObjectDto> >(document.Children);

            var compositionDto = new ModelDto
            {
                Objects = objects
            };

            serializer.Serialize(stream, compositionDto);
        }
        public void Serialize(CanvasDocument document)
        {
            var objects = Mapper.Map<List<ObjectDto>>(document.Children);

            var compositionDto = new ModelDto
                                 {
                                     Objects = objects
                                 };

            serializer.Serialize(stream, compositionDto);
        }