Graphviz serializer.
Examples:
Obtaining a Graphviz writer class
RDF::Writer.for(:graphviz) #=> RDF::Raptor::Graphviz::Writer RDF::Writer.for("output.dot") RDF::Writer.for(file_name: "output.dot") RDF::Writer.for(file_extension: "dot") RDF::Writer.for(content_type: "text/vnd.graphviz")
Serializing RDF statements into a Graphviz file
RDF::Writer.open("output.dot") do |writer| graph.each_statement do |statement| writer << statement end end