# Environment Settings
You can also write information into env to skip some options.

## Model keys
```
# Set env BBM_OPENAI_API_KEY to ignore option --openai_key
export BBM_OPENAI_API_KEY=${your_api_key}

# Set env BBM_CAIYUN_API_KEY to ignore option --caiyun_key
export BBM_CAIYUN_API_KEY=${your_api_key}
```