<PackageReference Include="Microsoft.Data.SqlClient" Version="7.1.0" />

Microsoft.Data.SqlClient.SqlAuthenticationInitializer

public abstract class SqlAuthenticationInitializer
Called during the opening of the first SqlConnection instance to specify an Authentication connection string attribute.
namespace Microsoft.Data.SqlClient { public abstract class SqlAuthenticationInitializer { protected SqlAuthenticationInitializer(); public abstract void Initialize(); } }