# BaseMessageConverter

> **Class** in `langchain_community`

📖 [View in docs](https://reference.langchain.com/python/langchain-community/chat_message_histories/sql/BaseMessageConverter)

Convert BaseMessage to the SQLAlchemy model.

## Signature

```python
BaseMessageConverter()
```

## Extends

- `ABC`

## Methods

- [`from_sql_model()`](https://reference.langchain.com/python/langchain-community/chat_message_histories/sql/BaseMessageConverter/from_sql_model)
- [`to_sql_model()`](https://reference.langchain.com/python/langchain-community/chat_message_histories/sql/BaseMessageConverter/to_sql_model)
- [`get_sql_model_class()`](https://reference.langchain.com/python/langchain-community/chat_message_histories/sql/BaseMessageConverter/get_sql_model_class)

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[View source on GitHub](https://github.com/langchain-ai/langchain-community/blob/4b280287bd55b99b44db2dd849f02d66c89534d5/libs/community/langchain_community/chat_message_histories/sql.py#L54)