diff --git a/meta/conf.mtgn b/meta/conf.mtgn
index 9f33f27..ecd8739 100644
--- a/meta/conf.mtgn
+++ b/meta/conf.mtgn
@@ -1,7 +1,14 @@
 
 struct ConfBase
-  @bhl_bind
+  @autogen @bhl_bind
   #NOTE: id is a CRC value
   id     : uint32  @default:0
   strid  : string  @default:""
 end
+
+struct ItemAmount
+  @cloneable @autogen @bhl_bind
+  proto_id : uint32 @flt_str2num @default:0 @cs_propget_interface:IReadOnlyItemAmount
+  amount   : int64 @default:1 @obscured @cs_propget_interface:IReadOnlyItemAmount
+end
+