---
title: "Definition | JavaScript maps SDK"
description: "Documentation for MapTiler SDK"
---

> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.

# Type Alias Definition

Definition:  
    | \[[Type](https://docs.maptiler.com/sdk-js/api-reference/types/Type/), [Signature](https://docs.maptiler.com/sdk-js/api-reference/types/Externals.Signature/), [Evaluate](https://docs.maptiler.com/sdk-js/api-reference/types/Externals.Evaluate/)\]  
    | { overloads: \[[Signature](https://docs.maptiler.com/sdk-js/api-reference/types/Externals.Signature/), [Evaluate](https://docs.maptiler.com/sdk-js/api-reference/types/Externals.Evaluate/)\]\[\]; type: [Type](https://docs.maptiler.com/sdk-js/api-reference/types/Type/) }