def discard(self,
            element):
        if element in self.elements:
            del self.elements[element]
Initialize a 2D tree at t=0
dataset/ETHPy150Open Esri/solutions-geoprocessing-toolbox/suitability/toolboxes/scripts/MultidimensionSupplementalTools/MultidimensionSupplementalTools/Scripts/mds/ordered_set.py/OrderedSet.discard--crossover with--dataset/ETHPy150Open jamesmawm/Mastering-Python-for-Finance-source-codes/B03898_04_codes/TrinomialTreeOption.py/TrinomialTreeOption._initialize_stock_price_tree_