<PackageReference Include="Microsoft.Identity.Client" Version="4.85.1" />

Microsoft.Identity.Client.OAuth2.DeviceAuthHeader

namespace Microsoft.Identity.Client.OAuth2 { internal class DeviceAuthHeader { public IList<string> X5c { get; set; } public string Type { get; set; } public string Alg { get; } public DeviceAuthHeader(string base64EncodedCertificate); } }