def _find_prime_in_row(self, row):
        col = np.argmax(self.marked[row] == 2)
        if self.marked[row, col] != 2:
            col = -1
        return col
Find the first prime element in the specified row. Returns
dataset/ETHPy150Open scikit-learn/scikit-learn/sklearn/utils/linear_assignment_.py/_HungarianState._find_prime_in_row