torch.nn.functional.hardsigmoid
torch.nn.functional.hardsigmoid(input, inplace=False)
Applies the element-wise function
  \text{Hardsigmoid}(x) = \begin{cases}     0 & \text{if~} x \le
  -3, \\     1 & \text{if~} x \ge +3, \\     x / 6 + 1 / 2 &
  \text{otherwise} \end{cases}

Parameters:
      inplace (bool) -- If set to "True", will do this operation
      in-place. Default: "False"
Return type:
      Tensor
See "Hardsigmoid" for more details.