def addStage(self, stage: Stage) -> None:
"""Add a stage if it's not already added.
:param stage: The stage to be added
"""
name = stage.getId()
if name not in self._stages:
self._stages[name] = stage
self.stagesChanged.emit()
def addStage(self, stage: Stage) -> None:
name = stage.getId()
if name not in self._stages:
self._stages[name] = stage
self.stagesChanged.emit()