    # File lib/graphviz/graphml.rb, line 165
        def graphml_graph_node_port( node )
          @current_node[:shape] = :record
          port = node.attributes['name']
          if @current_node[:label]
            label = @current_node[:label].gsub( "{", "" ).gsub( "}", "" )
            @current_node[:label] = "#{label}|<#{port}> #{port}"
          else
            @current_node[:label] = "<#{port}> #{port}"
          end
        end