Update agent.py

agent.py

@@ -16,6 +16,12 @@ MODEL_ID = "o4-mini"
 PHOENIX_CLIENT_HEADERS = "api_key = " + os.environ["PHOENIX_API_KEY"]
 PHOENIX_COLLECTOR_ENDPOINT = "https://app.phoenix.arize.com"
 
+###
+os.environ["OTEL_EXPORTER_OTLP_HEADERS"] = PHOENIX_CLIENT_HEADERS;
+os.environ["PHOENIX_CLIENT_HEADERS"] = PHOENIX_CLIENT_HEADERS;
+os.environ["PHOENIX_COLLECTOR_ENDPOINT"] = "https://app.phoenix.arize.com";
+###
+
 tracer_provider = register(
     project_name = "default",
     endpoint = "https://app.phoenix.arize.com/v1/traces"