code: def gelu_impl(x):
      """OpenAI's gelu implementation."""
      return (
          0.5
          * x
          * (
              1.0
              + torch.tanh(
                  0.7978845608028654 * x * (1.0 + 0.044715 * x * x)
              )
          )
      )
  
imports: import itertools
  import math
  from typing import Dict, Iterator, List, Tuple, Union
  import torch
  import torch.nn
  from torch import Tensor
label_desc: Use image node_id 8 for calling a global function with example usage: gelu_impl(x) and returns: unknown