https://source.android.com/ 
interface android.net.NetworkCapabilities$NameOf
  minor version: 0
  major version: 59
  flags: flags: (0x0600) ACC_INTERFACE, ACC_ABSTRACT
  this_class: android.net.NetworkCapabilities$NameOf
  super_class: java.lang.Object
{
  public abstract java.lang.String nameOf(int);
    descriptor: (I)Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
       Name  Flags
      value  
}
SourceFile: "NetworkCapabilities.java"
NestHost: android.net.NetworkCapabilities
InnerClasses:
  private abstract NameOf = android.net.NetworkCapabilities$NameOf of android.net.NetworkCapabilities