class_docstr: SiLU activation function (also known as Swish): x * sigmoid(x).
code: def forward(self, x):
      return x * torch.sigmoid(x)
  
imports: import numpy
  import torch
  import torch.nn
  from pycls.core.config import cfg
  from torch.nn import Module
label_desc: Use image node_id 2 for calling the SiLU obj's underlying member method code with example usage: obj.forward(x) and returns: unknown