code: def forward(self, x):
      return x * torch.sigmoid(x)
  
imports: import math
  import numpy
  import torch
  import torch.nn
  from apex.contrib.group_norm import GroupNorm
  from einops import repeat
  from torch._dynamo import disable
  from torch.cuda.amp import custom_bwd, custom_fwd
label_desc: Use image node_id 1 for calling the SiLU obj's underlying member method code with example usage: obj.forward(x) and returns: unknown