fix(otel): Handle empty contents in experimental semconv

RKest · copybara-github · commit d611f1172643 · 2026-06-09T06:11:08.000-07:00
Co-authored-by: Max Ind &lt;maxind@google.com&gt;
PiperOrigin-RevId: 929149280
diff --git a/src/google/adk/telemetry/_experimental_semconv.py b/src/google/adk/telemetry/_experimental_semconv.py
@@ -455,6 +455,8 @@ async def set_operation_details_attributes_from_request(
 
   input_messages = _to_input_messages(
       transformers.t_contents(llm_request.contents)
+      if llm_request.contents
+      else []
   )
 
   system_instructions = _to_system_instructions(llm_request.config)

Original file line number	Diff line number	Diff line change
`@@ -455,6 +455,8 @@ async def set_operation_details_attributes_from_request(`
`455`	`455`
`456`	`456`	`input_messages = _to_input_messages(`
`457`	`457`	`transformers.t_contents(llm_request.contents)`
	`458`	`+ if llm_request.contents`
	`459`	`+ else []`
`458`	`460`	`)`
`459`	`461`
`460`	`462`	`system_instructions = _to_system_instructions(llm_request.config)`