diff --git a/src/public.js b/src/public.js
index <HASH>..<HASH> 100644
--- a/src/public.js
+++ b/src/public.js
@@ -102,6 +102,12 @@ d3plus.public.height = {
   "value": null
 }
 
+d3plus.public.history = {
+  "accepted": [true,false],
+  "states": [],
+  "value": true
+}
+
 d3plus.public.html = {
   "deprecates": ["click_function"],
   "value": null
@@ -166,6 +172,11 @@ d3plus.public.links = {
   "value": null
 }
 
+d3plus.public.messages = {
+  "accepted": [true,false],
+  "value": true
+}
+
 d3plus.public.nodes = {
   "value": null
 }
created public "history" and "messages" methods