generic operators: Provide a value for Output.meta.drange when possible.
request: Old backend: Added block() to be forward-compatible with the new backend.
roiRequestBatch: Cleaned up unused import statements.
ThreadPool: Workers free the previous request to be garbage-collected before waiting for the next request.
ThreadPool: Added an assert to make it clear that the module is probably relying on CPython-specific behavior.
request: Cleared up some cyclical references that were probably preventing garbage collection of some greenlet-owned objects.
request: Added some asserts to ensure that the greenlet is freed after the request is finished executing.
request: Added an assert to make it clear that the request module may be relying on CPython-specific behavior.
testBigRequestStreamer: Minor tweaks to the test for debugging.
docs: request: Added a note about direct execution and request priority queues.