code: def setUp(self) -> None:
      self.filter_class = SharpenFilter
  
imports: from __future__ import annotations
  import unittest
  import torch
  from parameterized import parameterized
  from monai.networks.layers import ApplyFilter, EllipticalFilter, LaplaceFilter, MeanFilter, SharpenFilter
label_desc: Use image node_id 1 for calling the SharpenTestCase obj's underlying member method code with example usage: obj.setUp() without return types