def is_heartbeat(tup):
    return tup.task == -1 and tup.stream == '__heartbeat'
Reset execution count.
dataset/ETHPy150Open Yelp/pyleus/pyleus/storm/__init__.py/is_heartbeat--crossover with--dataset/ETHPy150Open OpenMDAO/OpenMDAO-Framework/openmdao.main/src/openmdao/main/workflow.py/Workflow.reset