From 8fc4aa093eecdb87250747ccce11407be4d92904 Mon Sep 17 00:00:00 2001
From: Nikita Shevtsov <shevtsov@ispras.ru>
Date: Thu, 28 Sep 2023 18:02:47 +0300
Subject: [PATCH] add serializable

---
 dedocutils/data_structures/bbox.py         |  4 +++-
 dedocutils/data_structures/serializable.py | 16 ++++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100644 dedocutils/data_structures/serializable.py

diff --git a/dedocutils/data_structures/bbox.py b/dedocutils/data_structures/bbox.py
index bf69090..310de53 100644
--- a/dedocutils/data_structures/bbox.py
+++ b/dedocutils/data_structures/bbox.py
@@ -5,9 +5,11 @@
 
 import numpy as np
 
+from dedocutils.data_structures.serializable import Serializable
+
 
 @dataclass
-class BBox:
+class BBox(Serializable):
     """
     Bounding box around some page object, the coordinate system starts from top left corner.
     """
diff --git a/dedocutils/data_structures/serializable.py b/dedocutils/data_structures/serializable.py
new file mode 100644
index 0000000..61e17f1
--- /dev/null
+++ b/dedocutils/data_structures/serializable.py
@@ -0,0 +1,16 @@
+from abc import ABC, abstractmethod
+
+
+class Serializable(ABC):
+    """
+    Base class for the serializable objects which we need convert to dict.
+    """
+    @abstractmethod
+    def to_dict(self) -> dict:
+        """
+        Convert class data into dictionary representation.
+        Dictionary key should be string and dictionary value should be json serializable.
+
+        :return: dict with all class data.
+        """
+        pass
\ No newline at end of file