https://source.android.com/ 
public interface android.content.pm.RegisteredServicesCacheListener<V>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: android.content.pm.RegisteredServicesCacheListener
  super_class: java.lang.Object
{
  public abstract void onServiceChanged(V, int, );
    descriptor: (Ljava/lang/Object;IZ)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (TV;IZ)V
    MethodParameters:
         Name  Flags
      type     
      userId   
      removed  
}
Signature: <V:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "RegisteredServicesCacheListener.java"