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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def ReadLine(self, file_object):
 """Reads a line. Args: file_object (dfvfs.FileIO):
 file-like object. Returns: str: line read from the lines buffer. """

    line, _, self.lines = self.lines.partition('\n')
    if not line:
      self.ReadLines(file_object)
      line, _, self.lines = self.lines.partition('\n')

    return line