diff --git a/shared/interfaces.go b/shared/interfaces.go
new file mode 100644
index 0000000..f330a7c
--- /dev/null
+++ b/shared/interfaces.go
@@ -0,0 +1,9 @@
+package shared
+
+type Clonable interface {
+	Clone() Clonable
+}
+
+type Santisable interface {
+	Sanitize()
+}