code: def forward(self, x):
      return x * F.hardtanh(x + 3, 0.0, 6.0, True) / 6.0
  
imports: import torch.nn.functional
  from .utils import *
label_desc: Use image node_id 1 for calling the HardSwish obj's underlying member method code with example usage: obj.forward(x) and returns: unknown