code: def test_init(self):
      with self.assertRaises(TypeError):
          PSEHead(in_channels=1)
  
      with self.assertRaises(TypeError):
          PSEHead(out_channels="out")
  
imports: from unittest import TestCase
  import torch
  from mmocr.models.textdet.heads import PSEHead
label_desc: Use image node_id 2 for calling the TestPSEHead obj's underlying member method code with example usage: obj.test_init() without return types