def coroutine_annotation(f):
    f.coroutine_annotation = True
    return f
Set up the Position object that will store the PnL.
dataset/ETHPy150Open mongodb/motor/motor/metaprogramming.py/coroutine_annotation--crossover with--dataset/ETHPy150Open mhallsmoore/qstrader/position/position_test.py/TestRoundTripXOMPosition.setUp