def getNotifyMethod(self):
        return self.notify
f(x,y) = (x-3)^2 + xy + (y+4)^2 - 3
dataset/ETHPy150Open PureMVC/puremvc-python-standard-framework/src/puremvc/patterns/observer.py/Observer.getNotifyMethod--crossover with--dataset/ETHPy150Open OpenMDAO/OpenMDAO/examples/paraboloid_optimize_constrained.py/Paraboloid.solve_nonlinear