addChild :: PipeRun -> PipelineComponent -> <Proc> ()
getChild :: PipeRun -> <Proc> [PipelineComponent]
remChild :: PipeRun -> PipelineComponent -> <Proc> ()
addChild :: PipeRun -> PipelineComponent -> <Proc> ()
getChild :: PipeRun -> <Proc> [PipelineComponent]
remChild :: PipeRun -> PipelineComponent -> <Proc> ()