fix(langchain): update docstring for trace_context#1476
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Co-authored-by: hassieb <hassieb@langfuse.com>
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Update
LangchainCallbackHandlerdocstring to documenttrace_contextand provide an example for setting a custom trace ID.Important
Update
LangchainCallbackHandlerdocstring to documenttrace_contextand provide an example for setting a custom trace ID.LangchainCallbackHandlerdocstring to includetrace_contextparameter.LangchainCallbackHandler.This description was created by
for cf63a79. You can customize this summary. It will automatically update as commits are pushed.
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Greptile Overview
Greptile Summary
Enhanced documentation for
LangchainCallbackHandlerby adding the missingtrace_contextparameter description and usage example. The docstring now clearly explains how to set custom trace IDs for distributed tracing or linking LangChain runs to upstream systems.Confidence Score: 5/5
Important Files Changed
File Analysis
trace_contextparameter with clear example showing custom trace ID usageSequence Diagram
sequenceDiagram participant User participant CallbackHandler participant Langfuse Client participant Trace User->>CallbackHandler: Initialize with trace_context={"trace_id": "custom-id"} Note over CallbackHandler: Store trace_context parameter User->>CallbackHandler: Execute LangChain chain CallbackHandler->>Langfuse Client: start_observation(trace_context=trace_context) Langfuse Client->>Trace: Create/link to trace with custom ID Note over Trace: Trace uses custom trace_id<br/>from trace_context Trace-->>Langfuse Client: Trace created/linked Langfuse Client-->>CallbackHandler: Observation started CallbackHandler-->>User: Chain execution continues