def getProtocolClass(self):
        raise NotImplementedError()
Return an iterator over pairs, (v0, v1), drawn from values.
dataset/ETHPy150Open ga4gh/server/tests/datadriven/__init__.py/DataDrivenTest.getProtocolClass--crossover with--dataset/ETHPy150Open quantopian/zipline/zipline/testing/core.py/product_upper_triangle