Update fbeta_score.py

fbeta_score.py

@@ -97,6 +97,6 @@ class F_Beta(evaluate.Metric):
         score = fbeta_score(
             references, predictions, beta=beta, labels=labels, pos_label=pos_label, average=average, sample_weight=sample_weight
         )
-        return {"f_beta_score": float(score) if score.size == 1 else score}
+        return {"f_beta_score": score if getattr(score, "size", 1) > 1 else float(score)}