code: def test_init(self):
      with self.assertRaises(AssertionError):
          FCEHead(in_channels="test", fourier_degree=5)
  
      with self.assertRaises(AssertionError):
          FCEHead(in_channels=1, fourier_degree="Text")
  
imports: from unittest import TestCase
  import torch
  from mmocr.models.textdet.heads import FCEHead
label_desc: Use image node_id 1 for calling the TestFCEHead obj's underlying member method code with example usage: obj.test_init() without return types