docs: add docs on StrOutputParser #28089
Merged
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Think it's worth adding a quick guide and including in the table in the concepts page.
StrOutputParser
can make it easier to deal with the union type for message content. For example, ChatAnthropic with bound tools will generate string content if there are no tool calls andlist[dict]
content otherwise.I'm also considering removing the output parser section from the "quickstart" tutorial; we can link to this guide instead.