Add field 'rules' in Trigger interface (#203)

diff --git a/lib/main.d.ts b/lib/main.d.ts
index a7df27e..cb13f36 100644
--- a/lib/main.d.ts
+++ b/lib/main.d.ts
@@ -225,6 +225,12 @@
     interface Trigger extends TriggerDesc {
         parameters?: KeyVal[];
         limits?: any;
+        rules?: {
+            [key: string]: {
+                action: PathName;
+                status: Status;
+            }
+        }
     }
 
     interface Route {