src/transformers/models/deberta/modeling_deberta.py/DebertaLayerNorm/__init__
class DebertaLayerNorm:    def __init__(self, size, eps=1e-12):
        super().__init__()
        self.weight = nn.Parameter(torch.ones(size))
        self.bias = nn.Parameter(torch.zeros(size))
        self.variance_epsilon = eps