diff -r 000000000000 -r 76005e62091d samples/union.ysl2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/samples/union.ysl2	Mon Jul 11 23:15:28 2016 +0200
@@ -0,0 +1,19 @@
+include yslt.yml2
+
+estylesheet {
+    template "/list" cities
+        apply "address[name='Meier']" with "me", ".";
+
+    template "address" {
+        param "me";
+
+        call "f" with "addresses", "$me/address[name='Schmid'] | .";
+    }
+
+    function "f" {
+        param "addresses";
+
+        foreach "$addresses"
+            city value "city";
+    }
+}