fix the way to pass api_key again

app.py

@@ -79,6 +79,7 @@ class BasicAgent:
                 "routing_strategy": "usage-based-routing-v2"
             },
             num_retries=5,
+            api_key=os.getenv("API_KEY"),
         )
         self.agent = CodeAgent(
             tools=[
@@ -90,7 +91,6 @@ class BasicAgent:
                 AssemblyAIAudioTranscriptTool(),
             ], 
             model=model,
-            api_key=os.getenv("API_KEY"),
             # step_callbacks=[rate_limiter.increment_and_sleep_if_needed],
             additional_authorized_imports=["pandas", "openpyxl", "requests"],
             instructions=CUSTOM_PROMPT