text: #pragma once
  #include <simulation.model/builder/IModelBuilder.h>
  
  namespace nspace{
    class ModelBuilderHolder{
    private:
      IModelBuilder & _builder;
    public:
      ModelBuilderHolder(IModelBuilder & builder):_builder(builder){
      }
      Model & model(){
        return *_builder.currentModel();
      }
      IModelBuilder &  builder(){
        return _builder;
      }
    };
  }