def GetCodeReviewIssueNumber(self):
    """Retrieves the codereview issue number.

    Returns:
      An integer containing the codereview issue number.
    """
    if not self._contents:
      return

    try:
      return int(self._contents, 10)
    except __HOLE__:
      pass
dataset/ETHPy150Open log2timeline/dfvfs/utils/review.py/ReviewFile.GetCodeReviewIssueNumber