Method update

lib/core_function.py:25–29

(self, val, n=1)

        self.count = 0

    def update(self, val, n=1):
        self.val = val
        self.sum += val * n
        self.count += n
        self.avg = self.sum / self.count if self.count != 0 else 0
        
        
def get_batch_data(batch_data):