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Which of the following is the correct way to enable streaming with callbacks in LangChain?

easy📝 Syntax Q12 of 15
LangChain - Production Deployment
Which of the following is the correct way to enable streaming with callbacks in LangChain?
Allm = OpenAI(streaming=True, callbacks=[MyCallbackHandler()])
Bllm = OpenAI(streaming=False, callbacks=MyCallbackHandler)
Cllm = OpenAI(callbacks=True, streaming=[MyCallbackHandler()])
Dllm = OpenAI(stream=True, callback=[MyCallbackHandler()])
Step-by-Step Solution
Solution:
  1. Step 1: Recall correct parameter names

    LangChain's OpenAI class uses 'streaming=True' and 'callbacks' as a list of handlers.
  2. Step 2: Check each option's syntax

    llm = OpenAI(streaming=True, callbacks=[MyCallbackHandler()]) correctly uses streaming=True and callbacks as a list. Others misuse parameter names or types.
  3. Final Answer:

    llm = OpenAI(streaming=True, callbacks=[MyCallbackHandler()]) -> Option A
  4. Quick Check:

    Correct params: streaming=True, callbacks=[handler] [OK]
Quick Trick: Use streaming=True and callbacks as a list [OK]
Common Mistakes:
MISTAKES
  • Using streaming=False to try enabling streaming
  • Passing callbacks as a single object, not a list
  • Misspelling parameter names like 'stream' or 'callback'

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