Update app.py

app.py

@@ -91,7 +91,7 @@ def create_demo():
               with gr.Row() as main_blocks:
                   with gr.Column() as step_1:
                       gr.Markdown('### Mask Input')   
-                      image = gr.Image(source='upload',
+                      image = gr.Image(sources=['upload'],
                                             shape=[HEIGHT,WIDTH],
                                             type='pil',#numpy',
                                             elem_classes="image_upload",
@@ -102,7 +102,7 @@ def create_demo():
                       mask_button = gr.Button(value='Set Mask')
                   with gr.Column(visible=False) as step_2:     
                       gr.Markdown('### Sketch Input')         
-                      sketch = gr.Image(source='upload',
+                      sketch = gr.Image(sources=['upload'],
                                             shape=[HEIGHT,WIDTH],
                                             type='pil',#'numpy',
                                         elem_classes="image_upload",