Manage which DataFlowKernel is active.
This is a singleton class containing only class methods. You should not need to instantiate this class.
Initialize self. See help(type(self)) for accurate signature.
Clear the active DataFlowKernel so that a new one can be loaded.
Return the currently-loaded DataFlowKernel.
Load a DataFlowKernel.
Waits for all tasks in the task list to be completed, by waiting for their AppFuture to be completed.