From 0175868ae75e5ed99e74ddd519d18788f2fdef8b Mon Sep 17 00:00:00 2001
From: Linfeng <lfz0625@gmail.com>
Date: Fri, 10 May 2024 19:00:27 -0400
Subject: [PATCH] fix hash error - override hash func again

---
 predicators/structs.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/predicators/structs.py b/predicators/structs.py
index f5363e9f3b..aa011b6f0f 100644
--- a/predicators/structs.py
+++ b/predicators/structs.py
@@ -331,6 +331,10 @@ class VLMPredicate(Predicate):
     # An optional prompt additionally provided for each VLM predicate
     prompt: Optional[str] = None
 
+    def __hash__(self) -> int:
+        """Have to add this to override the default hash method again."""
+        return self._hash
+
     def holds(self, state: State, objects: Sequence[Object]) -> bool:
         """Public method for getting predicate value.