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# Petals
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This page covers how to use the Petals ecosystem within LangChain.
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It is broken into two parts: installation and setup, and then references to specific Petals wrappers.
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## Installation and Setup
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- Install with `pip install petals`
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- Get a Hugging Face api key and set it as an environment variable (`HUGGINGFACE_API_KEY`)
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## Wrappers
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### LLM
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There exists an Petals LLM wrapper, which you can access with
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```python
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from langchain.llms import Petals
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```
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