https://github.com/ReactiveX/RxJava: Reactive Extensions for Java
  • David Karnok 
public interface io.reactivex.FlowableOperator<Downstream, Upstream>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: io.reactivex.FlowableOperator
  super_class: java.lang.Object
{
  public abstract org.reactivestreams.Subscriber<? super Upstream> apply(org.reactivestreams.Subscriber<? super Downstream>);
    descriptor: (Lorg/reactivestreams/Subscriber;)Lorg/reactivestreams/Subscriber;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.lang.Exception
    Signature: (Lorg/reactivestreams/Subscriber<-TDownstream;>;)Lorg/reactivestreams/Subscriber<-TUpstream;>;
    RuntimeInvisibleAnnotations: 
      io.reactivex.annotations.NonNull()
    RuntimeInvisibleParameterAnnotations: 
      0:
        io.reactivex.annotations.NonNull()
    MethodParameters:
            Name  Flags
      subscriber  
}
Signature: <Downstream:Ljava/lang/Object;Upstream:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "FlowableOperator.java"