text: #ifndef __GRAPHWIZ_FORMAT_H_
  #define __GRAPHWIZ_FORMAT_H_
  
  #include "AFormat.h"
  
  namespace Formats
  {
      class GraphWizFormat : public AFormat
      {
      public:
          typedef AFormat ParentClass;
  
      protected:
          virtual void InnerSaveToFile(
              std::ostream& stream, 
              ::Graph::AdjacencyMatrix& matr,
              const ::Graph::Graph& gr);
      };
  }
  
  #endif
  