import numpy as np


class CrossEntropyError:
    def __init__(self):
        self.params = []

    def forward(self, x):
        return

    def backward(self):
        pass

import numpy as np


class CrossEntropyError:
    def __init__(self):
        self.params = []

    def forward(self, x):
        return

    def backward(self):
        pass
