# source

> Source of the package contents.

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor.PackageManager](/engine/6000.5/script-reference/unityeditor/packagemanager.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public PackageSource source { get; }
```

### Remarks

The source of a package can be a registry, built-in (that is, a standard package included with Unity), embedded (part of the current Unity project), a local file path, or a Git URL.