from bt2.clock_class import *
-from bt2.clock_class import _ClockValue
from bt2.clock_class_priority_map import *
+from bt2.clock_value import *
from bt2.component import *
from bt2.component import _FilterComponent
from bt2.component import _GenericFilterComponentClass
pass
+class CannotConsumeGraph(Error):
+ pass
+
+
class GraphCanceled(Exception):
pass