diff --git a/Jenkinsfile b/Jenkinsfile
index 6cc1d5e..f8092e2 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,4 +1,11 @@
 // need to approve all static functions in Dashboard > Manage Jenkins > ScriptApproval
+// method hudson.model.Item getAllJobs
+// method hudson.model.Item getName
+// method hudson.model.ItemGroup getItem java.lang.String
+// method hudson.model.ItemGroup getItems
+// method jenkins.model.Jenkins getItemByFullName java.lang.String
+// new java.util.ArrayList
+staticMethod jenkins.model.Jenkins getInstance
 def ArrayList<String> getBranches(projectName){
   def jobs = jenkins.model.Jenkins.instance.getItemByFullName(projectName).getAllJobs();
   Iterator<?> iterator = jobs.iterator();