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Which LangChain component is primarily used to collect trace details and latency?

easy📝 Conceptual Q2 of 15
LangChain - LangSmith Observability
Which LangChain component is primarily used to collect trace details and latency?
AChainExecutor
BTraceLogger
CLatencyMonitor
DLangChainTracer
Step-by-Step Solution
Solution:
  1. Step 1: Identify the component for tracing

    LangChainTracer is designed to collect detailed trace and latency data.
  2. Step 2: Compare with other options

    Other options are not standard LangChain components for tracing.
  3. Final Answer:

    LangChainTracer -> Option D
  4. Quick Check:

    Tracer component = LangChainTracer [OK]
Quick Trick: Use LangChainTracer to get detailed trace info [OK]
Common Mistakes:
MISTAKES
  • Choosing non-existent components
  • Confusing tracer with executor
  • Assuming latency monitor is built-in

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