code: def test_exp_sigmoid_input(self):
      input = torch.linspace(
          -5,
          5,
          20,
          device=self.device,
          dtype=self.dtype,
          requires_grad=True,
      )
      exponent = 10.0
      max_value = 2.0
      threshold = 1e-7
      assert gradcheck(
          F.exp_sigmoid, (input, exponent, max_value, threshold)
      )
  
file_path: audio/test/torchaudio_unittest/prototype/functional/autograd_test_impl.py
imports: import math
  import torch
  import torchaudio.prototype.functional
  from parameterized import parameterized
  from torch.autograd import gradcheck
  from torchaudio_unittest.common_utils import TestBaseMixin
label_desc: Use image node_id 6 for calling the AutogradTestImpl obj's underlying member method code with example usage: obj.test_exp_sigmoid_input() without return types