fix categories undefined

app.py

@@ -1,7 +1,7 @@
 # AUTOGENERATED! DO NOT EDIT! File to edit: 02_production_gradio.ipynb.
 
 # %% auto 0
-__all__ = ['path', 'learn', 'image', 'label', 'examples', 'intf', 'classify_image']
+__all__ = ['path', 'learn', 'categories', 'image', 'label', 'examples', 'intf', 'classify_image']
 
 # %% 02_production_gradio.ipynb 0
 from fastai.vision.all import *
@@ -10,6 +10,10 @@ import gradio as gr
 path = Path('bears')
 learn = load_learner('export.pkl')
 
+# %% 02_production_gradio.ipynb 1
+categories = learn.dls.vocab
+
+
 # %% 02_production_gradio.ipynb 2
 image = gr.inputs.Image(shape=(192, 192))
 label = gr.outputs.Label()