def METHOD_NAME(self, iface):
    """
    Read the content of interfaces config file through augeas.
    :param iface: Network interface, e.g. eth0
    :type iface: string
    :return: Augeas object
    :rtype: augeas
    """
    aug = Augeas(modules=[{
        'name': 'Shellvars',
        'lens': 'Shellvars.lns',
        'incl': [
            os.path.join(self.path, 'ifcfg-' + iface),
        ]
    }])
    aug.load()
    return aug