diff --git a/parea/cookbook/tracing_with_open_ai_endpoint_directly.py b/parea/cookbook/tracing_with_open_ai_endpoint_directly.py
index 16bd903c..77c8ed8c 100644
--- a/parea/cookbook/tracing_with_open_ai_endpoint_directly.py
+++ b/parea/cookbook/tracing_with_open_ai_endpoint_directly.py
@@ -17,51 +17,63 @@
 
 @trace
 def argument_chain(query: str, additional_description: str = "") -> str:
-    argument = openai.ChatCompletion.create(
-        model="gpt-3.5-turbo-0613",
-        temperature=0.0,
-        messages=[
-            {
-                "role": "system",
-                "content": f"""You are a debater making an argument on a topic. {additional_description}.
+    argument = (
+        openai.ChatCompletion.create(
+            model="gpt-3.5-turbo-0613",
+            temperature=0.0,
+            messages=[
+                {
+                    "role": "system",
+                    "content": f"""You are a debater making an argument on a topic. {additional_description}.
 The current time is {datetime.now()}""",
-            },
-            {"role": "user", "content": f"The discussion topic is {query}"},
-        ],
-    ).choices[0].message["content"]
+                },
+                {"role": "user", "content": f"The discussion topic is {query}"},
+            ],
+        )
+        .choices[0]
+        .message["content"]
+    )
 
-    criticism = openai.ChatCompletion.create(
-        model="gpt-3.5-turbo-0613",
-        temperature=0.0,
-        messages=[
-            {
-                "role": "system",
-                "content": f"""You are a critic.
+    criticism = (
+        openai.ChatCompletion.create(
+            model="gpt-3.5-turbo-0613",
+            temperature=0.0,
+            messages=[
+                {
+                    "role": "system",
+                    "content": f"""You are a critic.
 What unresolved questions or criticism do you have after reading the following argument?
 Provide a concise summary of your feedback.""",
-            },
-            {"role": "user", "content": argument},
-        ],
-    ).choices[0].message["content"]
+                },
+                {"role": "user", "content": argument},
+            ],
+        )
+        .choices[0]
+        .message["content"]
+    )
 
-    refined_argument = openai.ChatCompletion.create(
-        model="gpt-3.5-turbo-0613",
-        temperature=0.0,
-        messages=[
-            {
-                "role": "system",
-                "content": f"""You are a debater making an argument on a topic. {additional_description}.
+    refined_argument = (
+        openai.ChatCompletion.create(
+            model="gpt-3.5-turbo-0613",
+            temperature=0.0,
+            messages=[
+                {
+                    "role": "system",
+                    "content": f"""You are a debater making an argument on a topic. {additional_description}.
 The current time is {datetime.now()}""",
-            },
-            {"role": "user", "content": f"""The discussion topic is {query}"""},
-            {"role": "assistant", "content": argument},
-            {"role": "user", "content": criticism},
-            {
-                "role": "system",
-                "content": f"Please generate a new argument that incorporates the feedback from the user.",
-            },
-        ],
-    ).choices[0].message["content"]
+                },
+                {"role": "user", "content": f"""The discussion topic is {query}"""},
+                {"role": "assistant", "content": argument},
+                {"role": "user", "content": criticism},
+                {
+                    "role": "system",
+                    "content": f"Please generate a new argument that incorporates the feedback from the user.",
+                },
+            ],
+        )
+        .choices[0]
+        .message["content"]
+    )
 
     return refined_argument