Add generate api

app.py

@@ -72,7 +72,7 @@ with block:
                 randomize=True,
             )
         text.submit(infer, inputs=[text, samples, steps, scale, seed], outputs=gallery)
-        btn.click(infer, inputs=[text, samples, steps, scale, seed], outputs=gallery)
+        btn.click(infer, inputs=[text, samples, steps, scale, seed], outputs=gallery, api_name="generate")
         advanced_button.click(
             None,
             [],