get snapshot
diff --git a/openstack/blockstorage/v1/snapshots/snapshots.go b/openstack/blockstorage/v1/snapshots/snapshots.go
index 6a76f85..bd5510a 100644
--- a/openstack/blockstorage/v1/snapshots/snapshots.go
+++ b/openstack/blockstorage/v1/snapshots/snapshots.go
@@ -12,4 +12,5 @@
 }
 
 type CreateOpts map[string]interface{}
+type GetOpts map[string]string
 type DeleteOpts map[string]string