Scans the specified config and parse the access-vlan value
        Args:
            config (str): The interface configuration block to scan

        Returns:
            dict: A Python dict object with the value of switchport access
                value.  The dict returned is intended to be merged into the
                resource dict

def _parse_access_vlan(self, config):
        """Scans the specified config and parse the access-vlan value
        Args:
            config (str): The interface configuration block to scan

        Returns:
            dict: A Python dict object with the value of switchport access
                value.  The dict returned is intended to be merged into the
                resource dict
        """
        value = re.search(r'switchport access vlan (\d+)', config)
        return dict(access_vlan=value.group(1))