def writelines(self, lines):
        '''
            Write a list of lines to the stream. Line separators are not added, so it is usual for each of the lines provided to have a line separator at the end.
        :param lines:
        '''
        if self.__closed:
            raise OSError()
        for line in lines:
            self.write(line)
Write a list of lines to the stream. Line separators are not added, so it is usual for each of the lines provided to have a line separator at the end.
        :param lines: