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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def init_dense_weight(layer):
    '''initilize dense layer weight.
    '''
    units = layer.units
    weight = np.eye(units)
    bias = np.zeros(units)
    layer.set_weights(
        (add_noise(weight, np.array([0, 1])), add_noise(bias, np.array([0, 1])))
    )