--- a
+++ b/models/base_model.py
@@ -0,0 +1,22 @@
+# Manuel A. Morales (moralesq@mit.edu)
+# Harvard-MIT Department of Health Sciences & Technology  
+# Athinoula A. Martinos Center for Biomedical Imaging
+
+from abc import ABC, abstractmethod
+
+class BaseModel(ABC):
+    
+    def __init__(self, opt):
+        self.opt = opt
+
+    @abstractmethod    
+    def get_netS(self):
+        """Generate and save segmentations."""
+        pass
+   
+    @abstractmethod    
+    def get_netME(self):
+        """Generate and save motion estimates."""
+        pass    
+        
+        
\ No newline at end of file