Add application file with learning

app.py

@@ -1,6 +1,13 @@
 import gradio as gr
+from fastai.vision.all import *
 
 def greet(name):
+    path = untar_data(URLs.PETS)
+    dls = ImageDataLoaders.from_name_re(path, get_image_files(path/'images'), pat='(.+)_\d+.jpg', item_tfms=Resize(460), batch_tfms=aug_transforms(size=224, min_scale=0.75))
+    learn = vision_learner(dls, models.resnet50, metrics=accuracy)
+    learn.fine_tune(1)
+    learn.path = Path('.')
+    learn.export()
     return "Hello " + name + "!!"
 
 iface = gr.Interface(fn=greet, inputs="text", outputs="text")