vllm/docs/source/design/multimodal/adding_multimodal_plugin.md

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(adding-multimodal-plugin)=
# Adding a Multimodal Plugin
This document teaches you how to add a new modality to vLLM.
Each modality in vLLM is represented by a {class}`~vllm.multimodal.MultiModalPlugin` and registered to {data}`~vllm.multimodal.MULTIMODAL_REGISTRY`.
For vLLM to recognize a new modality type, you have to create a new plugin and then pass it to {meth}`~vllm.multimodal.MultiModalRegistry.register_plugin`.
The remainder of this document details how to define custom {class}`~vllm.multimodal.MultiModalPlugin` s.
```{note}
This article is a work in progress.
```
% TODO: Add more instructions on how to add new plugins once embeddings is in.