code: def BinarySigmoid(self, func):
          '''
          Currently, caffe2 does not support this function.
          '''
          n = onnx.helper.make_node(
              'HardSigmoid',
              func.input,
              func.output,
              alpha=1.0,
              beta=0.0
          )
          return [nf BinarySigmoid(self, func):
          '''
          Currently, caffe2 does not support this function.
          '''
          n = onnx.helper.make_node(
              'HardSigmoid',
              func.input,
              func.output,
              alpha=1.0,
              beta=0.0
          )
          return [n]
docs: Currently, caffe2 does not support this function.