code: def gelu_bias(bias, y):
      x = bias + y
      return (
          x
          * 0.5
          * (1.0 + torch.tanh(0.79788456 * x * (1 + 0.044715 * x * x)))
      )
  
imports: import torch
  import torch.nn
  import torch.fx
  from functorch import make_fx
  from torch.nn import functional
  from functorch.compile import memory_efficient_fusion
  from torch._functorch.compile_utils import fx_graph_cse
  from torch.testing._internal.common_utils import TestCase, run_tests
  import inspect
  import random
  from typing import Callable
  import unittest
label_desc: Use image node_id 2 for calling a global function with example usage: gelu_bias(bias, y) and returns: unknown