class_docstr: This stream raises an exception after some text has been written.
code: def write(self, b):
      if not self.raised and len(self.stream.getvalue()) > 1024:
          self.raised = True
          raise RuntimeError()
      self.stream.write(b)
  
imports: import io
  import re
  import unittest
  from horovod.runner.common.service.task_service import BasicTaskService, BasicTaskClient
  from horovod.runner.common.util import secret
label_desc: Use image node_id 2 for calling the FaultyStream obj's underlying member method code with example usage: obj.write(b) without return types