code: def geglu(x: Tensor) -> Tensor:
      """The GEGLU activation function from [1].
  
      References:
      ----------
      [1] Noam Shazeer, "GLU Variants Improve Transformer", 2020
      """
      assert x.shape[-1] % 2 == 0
      a, b = x.chunk(2, dim=-1)
      return a * F.gelu(b)
  
imports: import enum
  import math
  import warnings
  from typing import Callable, Dict, List, Optional, Tuple, Union, cast
  import torch
  import torch.nn.functional
  from torch import Tensor, nn
  from .utils import init_weights
label_desc: Use image node_id 5 for calling a global function with example usage: geglu(x) and returns: unknown