def get_timeline_events(req, start, stop, filters):
generator object to produce filenames for 
dataset/ETHPy150Open edgewall/trac/trac/timeline/api.py/ITimelineEventProvider.get_timeline_events--crossover with--dataset/ETHPy150Open CGATOxford/cgat/obsolete/pipeline_metagenomebenchmark.py/chimeraTargets