code: def __init__(self, dim):
      super().__init__()
      self.gamma = nn.Parameter(torch.zeros(1, 1, 1, dim))
      self.beta = nn.Parameter(torch.zeros(1, 1, 1, dim))
  
imports: import numbers
  from typing import Dict, Optional, Tuple
  import torch
  import torch.nn
  import torch.nn.functional
  from ..utils import is_torch_version
  from .activations import get_activation
  from .embeddings import CombinedTimestepLabelEmbeddings, PixArtAlphaCombinedTimestepSizeEmbeddings
label_desc: Use image node_id 1 to create a new GlobalResponseNorm object from inherited base classes: nn with example: obj = GlobalResponseNorm(dim)