def show(self, req, vol_type_id, id):
        """ Return a single extra spec item """
        context = req.environ['nova.context']
        specs = self._get_extra_specs(context, vol_type_id)
        if id in specs['extra_specs']:
            return {id: specs['extra_specs'][id]}
        else:
            return faults.Fault(exc.HTTPNotFound())
dataset/ETHPy150Open nii-cloud/dodai-compute/nova/api/openstack/contrib/volumetypes.py/VolumeTypeExtraSpecsController.show/original