class_docstr: Mish - "Mish: A Self Regularized Non-Monotonic Neural Activation Function"
  https://arxiv.org/abs/1908.08681v1
  implemented for PyTorch / FastAI by lessw2020
  github: https://github.com/lessw2020/mish
code: def forward(self, x):
      return mish(x, self.inplace)
  
imports: import torch.nn
  import torch.nn.functional
label_desc: Use image node_id 2 for calling the Mish obj's underlying member method code with example usage: obj.forward(x) and returns: mish