def __init__(self, targetFps=30):
        self.targetFps = targetFps
        self.timer = QtCore.QTimer()
        self.useScheduledTimer = True
        self.timer.setSingleShot(True)

        self.singleShotTimer = QtCore.QTimer()
        self.singleShotTimer.setSingleShot(True)
        self.callback = None
Testing the `transform` GeoQuerySet method on related geographic models.
dataset/ETHPy150Open RobotLocomotion/director/src/python/director/timercallback.py/TimerCallback.__init__--crossover with--dataset/ETHPy150Open django/django/tests/gis_tests/relatedapp/tests.py/RelatedGeoModelTest.test03_transform_related