> For the complete documentation index, see [llms.txt](https://datashapes.gitbook.io/primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://datashapes.gitbook.io/primer/revit/importinstance.islinked.md).

# ImportInstance.IsLinked

## 1. Description

This node is a great way to know whether an ImportInstance is a link or an import.

## 2. Input

* **ImportInstance(s)**

This input takes an ImportInstance or a set of instances from the model.

## 3. Output

* **bool**

The output retrieves a boolean. \
If the ImportInstance is linked, the boolean is set to True.\
If the ImportInstance is not linked but is imported, the boolean is set to False.

![](/files/-LZG2wgIJH5WRqAsdfo0)

![](/files/-LZG2eRHvA7MhJIBacgn)