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