https://source.android.com/ 
public interface android.telecom.Logging.SessionManager$ISessionIdQueryHandler
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: android.telecom.Logging.SessionManager$ISessionIdQueryHandler
  super_class: java.lang.Object
{
  public abstract java.lang.String getSessionId();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "SessionManager.java"
NestHost: android.telecom.Logging.SessionManager
InnerClasses:
  public abstract ISessionIdQueryHandler = android.telecom.Logging.SessionManager$ISessionIdQueryHandler of android.telecom.Logging.SessionManager