Get the default data for entities.

        @param entity_ids A list of entity ids either as strings or references.

def entities(self, entity_ids):
        '''Get the default data for entities.

        @param entity_ids A list of entity ids either as strings or references.
        '''
        url = '%s/meta/any?include=id&' % self.url
        for entity_id in entity_ids:
            url += 'id=%s&' % _get_path(entity_id)
        # Remove the trailing '&' from the URL.
        url = url[:-1]
        data = self._get(url)
        return data.json()