From a22da4315b4645ba3b8b371f24f7b0e634432829 Mon Sep 17 00:00:00 2001
From: Christophe Bornet <cbornet@hotmail.com>
Date: Wed, 17 Apr 2024 23:13:13 +0200
Subject: [PATCH] community[patch]: Replace function in CassandraVectorStore
 with simpler lambda (#20323)

---
 .../langchain_community/vectorstores/cassandra.py          | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/libs/community/langchain_community/vectorstores/cassandra.py b/libs/community/langchain_community/vectorstores/cassandra.py
index 799ea79b487..ac70c21d1ce 100644
--- a/libs/community/langchain_community/vectorstores/cassandra.py
+++ b/libs/community/langchain_community/vectorstores/cassandra.py
@@ -112,18 +112,13 @@ class Cassandra(VectorStore):
     def embeddings(self) -> Embeddings:
         return self.embedding
 
-    @staticmethod
-    def _dont_flip_the_cos_score(distance: float) -> float:
-        # the identity
-        return distance
-
     def _select_relevance_score_fn(self) -> Callable[[float], float]:
         """
         The underlying VectorTable already returns a "score proper",
         i.e. one in [0, 1] where higher means more *similar*,
         so here the final score transformation is not reversing the interval:
         """
-        return self._dont_flip_the_cos_score
+        return lambda score: score
 
     def delete_collection(self) -> None:
         """