diff --git a/src/runtime/predicate.rs b/src/runtime/predicate.rs
index 00920ec84a49458360252c9707558e4139609a57..c3c1299a25a78fe1044543127a8a705f17949bdc 100644
--- a/src/runtime/predicate.rs
+++ b/src/runtime/predicate.rs
@@ -1,6 +1,7 @@
-use crate::common::ChannelId;
-use crate::common::ChannelIndex;
-use crate::common::ControllerId;
+use crate::common::*;
+use crate::runtime::ProtocolS;
+use core::ops::Index;
+use core::ops::IndexMut;
 
 use std::collections::BTreeMap;
 
@@ -235,3 +236,5 @@ impl Predicate {
         todo!()
     }
 }
+
+////////////////////////////