code: def swish(x: torch.Tensor):
      """
      ### Swish activation
  
      $$x \cdot \sigma(x)$$
      """
      return x * torch.sigmoid(x)
  
imports: from typing import List
  import torch
  import torch.nn.functional
  from torch import nn
label_desc: Use image node_id 1 for calling a global function with example usage: swish(x) and returns: unknown