'Get key name to use to cache any property against field name and identification key.
Arguments:
field (str): The property name that needs to get cached.
key (str): Unique identification for cache key (e.g. platform_name).
Returns:
string: Cache key to be used.'

def _get_cache_key_name(self, field, key):

    return 'mobile_api.app_version_upgrade.{}.{}'.format(field, key)
