code: def __init__(self, stream, buffer=False):
      self.result = RegressionTestResult(stream, None, 0)
      self.result.buffer = buffer
  
imports: import functools
  import io
  import sys
  import time
  import traceback
  import unittest
  from test import support
label_desc: Use image node_id 1 to create a new QuietRegressionTestRunner object  with example: obj = QuietRegressionTestRunner(stream, buffer)