# AtsTypeRef Constructors

- Package: [Aspire.TypeSystem](/reference/api/csharp/aspire.typesystem.md)
- Type: [AtsTypeRef](/reference/api/csharp/aspire.typesystem/atstyperef.md)
- Kind: `Constructors`
- Members: `1`

Lightweight type reference with category and interface flag. Used for parameter types and return types in capabilities.

## AtsTypeRef

- Name: `Constructor`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/a3766e994fd2cba86c8ac60b8a80268cab7e6383/src/Aspire.TypeSystem/AtsCapabilityInfo.cs#L103)

```csharp
public sealed class AtsTypeRef
{
    public AtsTypeRef()
    {
        // ...
    }
}
```