HasUpstreamCompletableSource

All Known Implementing Classes:

FlowableFromCompletable, MaybeFromCompletable, ObservableFromCompletable
```
public interface HasUpstreamCompletableSource
```
Interface indicating the implementor has an upstream CompletableSource-like source available via source() method.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  @NonNull CompletableSource source()
  Returns the upstream source of this Completable.

- Method Detail
  - source
```
@NonNull
@NonNull CompletableSource source()
```
    Returns the upstream source of this Completable.
    Allows discovering the chain of observables.
    
    Returns:
    
    the source CompletableSource