from nmutil.singlepipe import (ControlBase, SimpleHandshake, PassThroughStage)
from nmutil.multipipe import CombMuxOutPipe
from nmutil.multipipe import PriorityCombMuxInPipe
from nmutil.singlepipe import (ControlBase, SimpleHandshake, PassThroughStage)
from nmutil.multipipe import CombMuxOutPipe
from nmutil.multipipe import PriorityCombMuxInPipe