code: def forward(self, x):
      x = F.normalize(x, dim=1)
      return self.net(x)
  
imports: import math
  from functools import partial
  from math import log2
  from typing import List
  import torch
  import torch.nn.functional
  from einops import rearrange
  from kornia.filters import filter2d
  from nemo.collections.tts.parts.utils.helpers import mask_sequence_tensor
label_desc: Use image node_id 2 for calling the StyleMapping obj's underlying member method code with example usage: obj.forward(x) and returns: self