Update error message to be more accurate

astartes/samplers/extrapolation/scaffold.py

@@ -30,7 +30,7 @@ class Scaffold(AbstractSampler):
     def _before_sample(self):
         # ensure that X contains entries that are either a SMILES string or an RDKit Molecule
         if not all(isinstance(i, str) for i in self.X) and not all(isinstance(i, Chem.rdchem.Mol) for i in self.X):
-            msg = "Scaffold class requires input X to be an iterable of SMILES strings"
+            msg = "Scaffold class requires input X to be an iterable of SMILES strings, InChI strings, or RDKit Molecules"
             raise TypeError(msg)
 
     def _sample(self):