Align output name

Signed-off-by: Jael Gu <mengjia.gu@zilliz.com>

timm_image.py

@@ -70,8 +70,8 @@ class TimmImage(NNOperator):
             features = global_pool(features)
 
         features = features.to('cpu')
-        feature_vector = features.flatten().detach().numpy()
-        return feature_vector
+        vec = features.flatten().detach().numpy()
+        return vec
 
 
 # if __name__ == '__main__':