Cannot read line from input when using default length #134

  'NoneType' object cannot be interpreted as an integer

  at .venv/lib/python3.9/site-packages/cleo/io/inputs/input.py:77 in read_line
       73│         """
       74│         if not self._interactive:
       75│             return default
       76│         
    →  77│         return self._stream.readline(length)
       78│ 
       79│     def close(self) -> None:
       80│         """
       81│         Closes the input.