'Parse the XML element and return a dictionary of device properties.
Additional information can be found at https://goo.gl/OGK88a.
:rtype:     ``dict``'

def _to_instance_device_mapping(self, element):

    mapping = {}
    mapping['device_name'] = findattr(element=element, xpath='deviceName', namespace=NAMESPACE)
    mapping['ebs'] = self._get_extra_dict(element, RESOURCE_EXTRA_ATTRIBUTES_MAP['ebs_instance_block_device'])
    return mapping
