(self, solutions, function_values)
abstract method, AKA "update", prepare for next iteration
abstract method, AKA "update", prepare for next iteration
abstract method AKA update prepare for next iteration
def tell(self, solutions, function_values):
        """abstract method, AKA "update", prepare for next iteration"""
        self.countiter += 1
        raise NotImplementedError('method tell() must be implemented in derived class')
def tell ( self , solutions , function_values ) : self . countiter += 1 raise NotImplementedError ( 'method tell() must be implemented in derived class' )