http://www.reactive-streams.org/: A Protocol for Asynchronous Non-Blocking Data Sequence 
public interface org.reactivestreams.Subscription
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.reactivestreams.Subscription
  super_class: java.lang.Object
{
  public abstract void request(long);
    descriptor: (J)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      n     

  public abstract void cancel();
    descriptor: ()V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "Subscription.java"