code: def forward(ctx, input, bias):
      ctx.save_for_backward(input, bias)
      return bias_gelu(input, bias)
  
imports: import math
  import torch
  import torch.nn
  import torch.nn.functional
label_desc: Use image node_id 1 for calling the GeLUFunction obj's underlying member method code with example usage: obj.forward(ctx, input, bias) and returns: bias_gelu