catch failures when reading token counts

Author: jsonbailey

packages/ai-providers/server-ai-openai/src/ldai_openai/openai_agent_graph_runner.py

@@ -97,14 +97,17 @@ async def run(self, input: Any) -> AgentGraphResult:
                 tracker.track_path(path)
                 tracker.track_latency(duration)
                 tracker.track_invocation_success()
-                usage = result.context_wrapper.usage
-                tracker.track_total_tokens(
-                    TokenUsage(
-                        total=usage.total_tokens,
-                        input=usage.input_tokens,
-                        output=usage.output_tokens,
+                try:
+                    usage = result.context_wrapper.usage
+                    tracker.track_total_tokens(
+                        TokenUsage(
+                            total=usage.total_tokens,
+                            input=usage.input_tokens,
+                            output=usage.output_tokens,
+                        )
                     )
-                )
+                except Exception:
+                    pass
 
             return AgentGraphResult(
                 output=str(result.final_output),