chore: import upstream snapshot with attribution

doc/source/templates/03_serving_stable_diffusion/query.py

@@ -0,0 +1,15 @@
+import requests
+
+endpoint = "http://localhost:8000/imagine"
+
+
+def generate_image(prompt, image_size):
+    req = {"prompt": prompt, "img_size": image_size}
+    resp = requests.get(endpoint, params=req)
+    return resp.content
+
+
+image = generate_image("twin peaks sf in basquiat painting style", 640)
+filename = "image.png"
+with open(filename, "wb") as f:
+    f.write(image)