Convert examples to ruff-format (#18400)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

examples/online_serving/api_client.py

@@ -17,16 +17,15 @@ import requests
 
 
 def clear_line(n: int = 1) -> None:
-    LINE_UP = '\033[1A'
-    LINE_CLEAR = '\x1b[2K'
+    LINE_UP = "\033[1A"
+    LINE_CLEAR = "\x1b[2K"
     for _ in range(n):
         print(LINE_UP, end=LINE_CLEAR, flush=True)
 
 
-def post_http_request(prompt: str,
-                      api_url: str,
-                      n: int = 1,
-                      stream: bool = False) -> requests.Response:
+def post_http_request(
+    prompt: str, api_url: str, n: int = 1, stream: bool = False
+) -> requests.Response:
     headers = {"User-Agent": "Test Client"}
     pload = {
         "prompt": prompt,
@@ -35,17 +34,14 @@ def post_http_request(prompt: str,
         "max_tokens": 16,
         "stream": stream,
     }
-    response = requests.post(api_url,
-                             headers=headers,
-                             json=pload,
-                             stream=stream)
+    response = requests.post(api_url, headers=headers, json=pload, stream=stream)
     return response
 
 
 def get_streaming_response(response: requests.Response) -> Iterable[list[str]]:
-    for chunk in response.iter_lines(chunk_size=8192,
-                                     decode_unicode=False,
-                                     delimiter=b"\n"):
+    for chunk in response.iter_lines(
+        chunk_size=8192, decode_unicode=False, delimiter=b"\n"
+    ):
         if chunk:
             data = json.loads(chunk.decode("utf-8"))
             output = data["text"]