fix: when caching examples

app.py

@@ -110,18 +110,22 @@ def recognize(
         return only_text, None
 
 
+def example_func(lang_list, rec_type, image_file):
+    return recognize(
+        lang_list,
+        mfd_model_name='yolov7 (paid)',
+        mfr_model_name='mfr-pro (paid)',
+        rec_type=rec_type,
+        resized_shape=768,
+        image_file=image_file,
+    )
+
+
 def main():
     langs = list(LANGUAGES.keys())
     langs.sort(key=lambda x: x.lower())
 
     title = 'Demo'
-    example_func = functools.partial(
-        recognize,
-        mfd_model_name='yolov7 (paid)',
-        mfr_model_name='mfr-pro',
-        rec_type='mixed',
-        resized_shape=768,
-    )
     examples = [
         [
             ['English'],