code: def assertStdoutContains(self, values: List) -> None:
      for value in values:
          self.assertIn(value, self.test_out.getvalue().strip())
  
imports: import io
  import sys
  from typing import List
  from unittest import TestCase
label_desc: Use image node_id 2 for calling the CaptureOutputBase obj's underlying member method code with example usage: obj.assertStdoutContains(values) without return types