diff --git a/wally/istorable.py b/wally/istorable.py
new file mode 100644
index 0000000..467f901
--- /dev/null
+++ b/wally/istorable.py
@@ -0,0 +1,31 @@
+import abc
+from typing import Any, Union, List, Dict
+
+
+class IStorable(metaclass=abc.ABCMeta):
+    """Interface for type, which can be stored"""
+
+    @abc.abstractmethod
+    def raw(self) -> Dict[str, Any]:
+        pass
+
+    @abc.abstractclassmethod
+    def fromraw(cls, data: Dict[str, Any]) -> 'IStorable':
+        pass
+
+
+class Storable(IStorable):
+    """Default implementation"""
+
+    def raw(self) -> Dict[str, Any]:
+        return self.__dict__
+
+    @classmethod
+    def fromraw(cls, data: Dict[str, Any]) -> 'IStorable':
+        obj = cls.__new__(cls)
+        obj.__dict__.update(data)
+        return obj
+
+
+Basic = Union[int, str, bytes, bool, None]
+StorableType = Union[IStorable, Dict[str, Any], List[Any], int, str, bytes, bool, None]