make object and container types generic
diff --git a/openstack/storage/v1/containers/containers.go b/openstack/storage/v1/containers/containers.go
index b3fb921..79c3d64 100644
--- a/openstack/storage/v1/containers/containers.go
+++ b/openstack/storage/v1/containers/containers.go
@@ -5,11 +5,7 @@
 	"strings"
 )
 
-type Container struct {
-	Bytes int
-	Count int
-	Name  string
-}
+type Container map[string]interface{}
 
 type ListOpts struct {
 	Full   bool