def add(self, itm, **options):
        if not options:
            options = None
        self._d[itm] = options
Find minimum x value from four (x,y) vertices.
dataset/ETHPy150Open couchbase/couchbase-python-client/couchbase/items.py/ItemOptionDict.add--crossover with--dataset/ETHPy150Open plotly/plotly.py/plotly/matplotlylib/mpltools.py/get_rect_xmin