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"""
Code borrowed from SelfMask: https://github.com/NoelShin/selfmask
"""


class AverageMeter(object):
    """Computes and stores the average and current value"""

    def __init__(self):
        self.reset()

    def reset(self):
        self.val = 0
        self.avg = 0
        self.sum = 0
        self.count = 0

    def update(self, val, n: int):
        self.val = val
        self.sum += val * n
        self.count += n
        self.avg = self.sum / self.count