def resource_from_uri(self, fk_resource, uri, request=None, related_obj=None, related_name=None):
        try:
            obj = fk_resource.get_via_uri(uri, request=request)
            bundle = fk_resource.build_bundle(obj=obj, request=request)
            return fk_resource.full_dehydrate(bundle)
        except ObjectDoesNotExist:
            raise ApiFieldError("Could not find the provided object via resource URI '%s'." % uri)
covariance matrix property
dataset/ETHPy150Open hzlf/openbroadcast/website/apps/tastypie__/fields.py/RelatedField.resource_from_uri--crossover with--dataset/ETHPy150Open rlabbe/filterpy/filterpy/hinfinity/hinfinity_filter.py/HInfinityFilter.P