code: def test_password_length(self):
      for i in range(8, 17):
          password = password_generator.generate_password(i)
          self.assertEqual(len(password), i)
  
imports: import unittest
  import password_generator
label_desc: Use image node_id 1 for calling the TestPasswordGenerator obj's underlying member method code with example usage: obj.test_password_length() without return types