Install yasnippet and vala-snippets packages

elpa/yasnippet-20160924.2001/snippets/go-mode/func

@@ -0,0 +1,8 @@
+# -*- mode: snippet -*-
+# name: func
+# key: func
+# --
+// $1 ${4:...}
+func ${1:name}(${2:args}) $3 {
+  $0
+}