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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 _lsb_release_info(self):
 """ Get the information items from the lsb_release command output. Returns: A dictionary containing all information items. """

        if not self.include_lsb:
            return {}
        with open(os.devnull, 'w') as devnull:
            try:
                cmd = ('lsb_release', '-a')
                stdout = subprocess.check_output(cmd, stderr=devnull)
            except OSError:  # Command not found
                return {}
        content = stdout.decode(sys.getfilesystemencoding()).splitlines()
        return self._parse_lsb_release_content(content)