class_docstr: StringIO that throws an exception when it's read from
class_docstr_tok: ["StringIO","that","throws","an","exception","when","it","'s","read","from"]
code: def readlines(self, *args, **kwargs):
      raise OSError
  
imports: import contextlib
  import faulthandler
  import io
  import multiprocessing
  import os
  import platform
  import signal
  import tempfile
label_desc: Use image node_id 3 for calling the WriteOnlyStringIO obj's underlying member method code with example usage: obj.readlines() without return types