Compose composes a source and a processor.

Connect connects a source and a sink.

Demultiplex demultiplexes the given channels.

Pop returns a new T from the ch.

Push tries to push a T to the ch.

RunTestEngine runs the processor in a test engine.

Collector collects channel result into an array.

Producer produces values.

Pipeline represents a computation.

Processor processes elements.

Sink consumes elements.

Source generates elements.