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