initial commit

template/utils.typ

@@ -0,0 +1,8 @@
+#let assert_in_dict(needle, dict, item_name) = {
+  if str(needle) not in dict {
+    panic(
+      "unknown " + item_name + " '" + str(needle) +
+      "', expected one of: " + dict.keys().map((k) => { "'" + str(k) + "'" }).join(", ")
+    );
+  }
+}