<PackageReference Include="Microsoft.IdentityModel.Protocols" Version="8.15.0" />

Microsoft.IdentityModel.Protocols.StaticConfigurationManager<T>

public class StaticConfigurationManager<T> : BaseConfigurationManager, IConfigurationManager<T>
This type is for users that want a fixed and static Configuration. In this case, the configuration is obtained and passed to the constructor.
public StaticConfigurationManager(T configuration)

Initializes an new instance of StaticConfigurationManager<T> with a Configuration instance.

public Task<T> GetConfigurationAsync(CancellationToken cancel)

Obtains an updated version of Configuration.