@classmethod
    def tickSize(cls, tickerId, field, size):
        return "id=" + str(tickerId) + "  " + TickType.getField(field) + "=" + str(size)
Test for ``_create_occurrence`` method.
dataset/ETHPy150Open CarterBain/Medici/ib/ext/EWrapperMsgGenerator.py/EWrapperMsgGenerator.tickSize--crossover with--dataset/ETHPy150Open bitmazk/django-calendarium/calendarium/tests/models_tests.py/EventTestCase.test_create_occurrence