@fluff.date_emitter
    def total(self, form):
        if BOOKING_FORMS in form.xmlns and form.form.get("registered_early", "") == "yes":
            yield [form.received_on.date(), 1]
dataset/ETHPy150Open dimagi/commcare-hq/custom/m4change/user_calcs/anc_hmis_report_calcs.py/AncAntenatalVisitBefore20WeeksCalculator.total/swapped operands of `in`