From e73e6c462e1ff8943530f1a21e022e55d63ec12b Mon Sep 17 00:00:00 2001
From: Alinson S Xavier <axavier@anl.gov>
Date: Thu, 30 Jul 2020 11:09:23 -0500
Subject: [PATCH] Add Instance.load and Instance.dump

---
 src/python/miplearn/instance.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/python/miplearn/instance.py b/src/python/miplearn/instance.py
index 54a9bcf..7de5311 100644
--- a/src/python/miplearn/instance.py
+++ b/src/python/miplearn/instance.py
@@ -3,6 +3,7 @@
 #  Released under the modified BSD license. See COPYING.md for more details.
 
 from abc import ABC, abstractmethod
+import pickle, gzip
 
 
 class Instance(ABC):
@@ -118,3 +119,11 @@ class Instance(ABC):
 
     def build_user_cut(self, model, violation):
         pass
+    
+    def load(self, filename):
+        with gzip.open(filename, "rb") as f:
+            self.__dict__ = pickle.load(f)
+        
+    def dump(self, filename):
+        with gzip.open(filename, "wb") as f:
+            pickle.dump(self.__dict__, f)
\ No newline at end of file