From 6fb54941965a2a021eb1fa4d8e2e41db2afbcebf Mon Sep 17 00:00:00 2001
From: Joel Niklaus <joel@harvey.ai>
Date: Mon, 11 Nov 2024 10:06:02 +0100
Subject: [PATCH] Fixes a TypeError for generative metrics.

---
 src/lighteval/metrics/sample_preparator.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/lighteval/metrics/sample_preparator.py b/src/lighteval/metrics/sample_preparator.py
index ad709033..dc32d95c 100644
--- a/src/lighteval/metrics/sample_preparator.py
+++ b/src/lighteval/metrics/sample_preparator.py
@@ -55,6 +55,7 @@ class PerplexityCorpusMetricInput(CorpusMetricInput):
 
 
 class GenerativePreparator:
+    @staticmethod
     def prepare(golds: list[str], predictions: list[str], **kwargs):
         """Prepares an individual generative example to the format expected by metrics computed at the corpus level (aggregated).