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docs: clarify streaming with RunnableLambda (#23228)

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ccurme
2024-06-20 14:49:00 -04:00
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docs/docs/how_to/functions.ipynb
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@@ -300,7 +300,11 @@
"id": "922b48bd",
"metadata": {},
"source": [
"# Streaming\n",
"## Streaming\n",
"\n",
":::{.callout-note}\n",
"[RunnableLambda](https://api.python.langchain.com/en/latest/runnables/langchain_core.runnables.base.RunnableLambda.html) is best suited for code that does not need to support streaming. If you need to support streaming (i.e., be able to operate on chunks of inputs and yield chunks of outputs), use [RunnableGenerator](https://api.python.langchain.com/en/latest/runnables/langchain_core.runnables.base.RunnableGenerator.html) instead as in the example below.\n",
":::\n",
"\n",
"You can use generator functions (ie. functions that use the `yield` keyword, and behave like iterators) in a chain.\n",
"\n",