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Fix propagate_attributes Grammatical issue #2390

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Fix propagate_attributes Grammatical issue #2390

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24 changes: 13 additions & 11 deletions pages/docs/observability/features/trace-ids-and-distributed-tracing.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -315,17 +315,19 @@ with langfuse.start_as_current_observation(
) as span:

with propagate_attributes(
span.update_trace(
input={"person": "Ada Lovelace"}
)

# LangChain execution will be part of this trace
response = chain.invoke(
{"person": "Ada Lovelace"},
config={"callbacks": [langfuse_handler]}
)

span.update_trace(output={"response": response})
user_id="user_123",
):
span.update_trace(
input={"person": "Ada Lovelace"}
)

# LangChain execution will be part of this trace
response = chain.invoke(
{"person": "Ada Lovelace"},
config={"callbacks": [langfuse_handler]}
)

span.update_trace(output={"response": response})

print(f"Trace ID: {predefined_trace_id}") # Use this for scoring later
print(f"Trace ID: {langfuse_handler.last_trace_id}") # Care needed in concurrent environments where handler is reused
Expand Down