# CertificateAuthorityCollectionAnnotation Constructors

- Package: [Aspire.Hosting](/reference/api/csharp/aspire.hosting.md)
- Type: [CertificateAuthorityCollectionAnnotation](/reference/api/csharp/aspire.hosting/certificateauthoritycollectionannotation.md)
- Kind: `Constructors`
- Members: `1`

An annotation that indicates a resource is referencing a certificate authority collection.

## CertificateAuthorityCollectionAnnotation

- Name: `Constructor`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/bd20f904cde09ecb9c9ae5116a6f13614bf2d7c2/src/Aspire.Hosting/ApplicationModel/CertificateAuthorityCollectionAnnotation.cs#L46)

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