anchor.diff:    }
   }
   
  +///
   /// A convenience implementation of the common case of an
   /// `IsolateStream<Uint8List>`.
   /// This can be useful for generating a stream that is large -- many GB, or
  
positive.code:   }
  }
  
  /// The sink returned by the generating function given to
  /// [IsolateStream.fromSink].
  class IsolateGeneratorSink<T> implements Sink<T> {
    _SendPortAdapter _dest;
    bool _closed = false;
  
negative.code: /// and consumer doesn't grow unreasonably large.  The maximum buffer
  /// size is set by maxBuf; the default value of 1 MB should be reasonable
  /// for most uses.
  ///
  class Uint8ListIsolateStream<A> extends IsolateStream<Uint8List, A> {
    /// Create a stream from a generator function that returns an
    /// [Iterator]
  