--- /dev/null
+digraph {
+graph [overlap=false]
+subgraph cluster_HTTP_Message_PSGI {
+ label="HTTP::Message::PSGI";
+ "HTTP::Message::PSGI::BEGIN@41";
+}
+subgraph cluster_XSLoader {
+ label="XSLoader";
+ "XSLoader::load";
+}
+subgraph cluster_PerlIO {
+ label="PerlIO";
+ "PerlIO::import";
+}
+"PerlIO::import" -> "XSLoader::load";
+"HTTP::Message::PSGI::BEGIN@41" -> "PerlIO::import";
+}