https://source.android.com/ 
public interface android.media.midi.IBluetoothMidiService extends android.os.IInterface
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: android.media.midi.IBluetoothMidiService
  super_class: java.lang.Object
{
  public abstract android.os.IBinder addBluetoothDevice(android.bluetooth.BluetoothDevice);
    descriptor: (Landroid/bluetooth/BluetoothDevice;)Landroid/os/IBinder;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws android.os.RemoteException
    MethodParameters:
                 Name  Flags
      bluetoothDevice  
}
SourceFile: "IBluetoothMidiService.java"
NestMembers:
  android.media.midi.IBluetoothMidiService$Stub  android.media.midi.IBluetoothMidiService$Stub$Proxy
InnerClasses:
  public abstract Stub = android.media.midi.IBluetoothMidiService$Stub of android.media.midi.IBluetoothMidiService