def addReader(self, reader):
        """
        Ignore the reader.  This is necessary because the waker will be
        added.  However, we won't actually monitor it for any events.
        """

        Ignore the reader.  This is necessary because the waker will be
        added.  However, we won't actually monitor it for any events.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/internet/test/test_posixbase.py