https://source.android.com/ 
public interface android.telecom.Logging.EventManager$Loggable
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: android.telecom.Logging.EventManager$Loggable
  super_class: java.lang.Object
{
  public abstract java.lang.String getId();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract java.lang.String getDescription();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "EventManager.java"
NestHost: android.telecom.Logging.EventManager
InnerClasses:
  public abstract Loggable = android.telecom.Logging.EventManager$Loggable of android.telecom.Logging.EventManager