# InMemoryEntityStore

> **Class** in `langchain_classic`

📖 [View in docs](https://reference.langchain.com/python/langchain-classic/memory/entity/InMemoryEntityStore)

In-memory Entity store.

## Signature

```python
InMemoryEntityStore()
```

## Extends

- `BaseEntityStore`

## Properties

- `store`

## Methods

- [`get()`](https://reference.langchain.com/python/langchain-classic/memory/entity/InMemoryEntityStore/get)
- [`set()`](https://reference.langchain.com/python/langchain-classic/memory/entity/InMemoryEntityStore/set)
- [`delete()`](https://reference.langchain.com/python/langchain-classic/memory/entity/InMemoryEntityStore/delete)
- [`exists()`](https://reference.langchain.com/python/langchain-classic/memory/entity/InMemoryEntityStore/exists)
- [`clear()`](https://reference.langchain.com/python/langchain-classic/memory/entity/InMemoryEntityStore/clear)

## ⚠️ Deprecated

Deprecated since version 0.3.1.

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[View source on GitHub](https://github.com/langchain-ai/langchain/blob/c59e83a1ffba63d709ea4847445845edd82085dc/libs/langchain/langchain_classic/memory/entity.py#L62)