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27 lines
942 B
Plaintext
27 lines
942 B
Plaintext
```python
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from langchain.chat_models import ChatOpenAI
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from langchain.prompts.chat import ChatPromptTemplate
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from langchain.schema import BaseOutputParser
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class CommaSeparatedListOutputParser(BaseOutputParser):
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"""Parse the output of an LLM call to a comma-separated list."""
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def parse(self, text: str):
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"""Parse the output of an LLM call."""
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return text.strip().split(", ")
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template = """You are a helpful assistant who generates comma separated lists.
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A user will pass in a category, and you should generate 5 objects in that category in a comma separated list.
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ONLY return a comma separated list, and nothing more."""
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human_template = "{text}"
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chat_prompt = ChatPromptTemplate.from_messages([
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("system", template),
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("human", human_template),
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])
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chain = chat_prompt | ChatOpenAI() | CommaSeparatedListOutputParser()
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chain.invoke({"text": "colors"})
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# >> ['red', 'blue', 'green', 'yellow', 'orange']
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```
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