# DocArray > [DocArray](https://docarray.jina.ai/) is a library for nested, unstructured, multimodal data in transit, > including text, image, audio, video, 3D mesh, etc. It allows deep-learning engineers to efficiently process, > embed, search, recommend, store, and transfer multimodal data with a Pythonic API. ## Installation and Setup We need to install `docarray` python package. ```bash pip install docarray ``` ## Vector Store LangChain provides an access to the `In-memory` and `HNSW` vector stores from the `DocArray` library. See a [usage example](/docs/integrations/vectorstores/docarray_hnsw). ```python from langchain.vectorstores DocArrayHnswSearch ``` See a [usage example](/docs/integrations/vectorstores/docarray_in_memory). ```python from langchain.vectorstores DocArrayInMemorySearch ```