Update utils.py

utils.py

@@ -44,6 +44,9 @@ feature_names = ['PROPERTY: BCC/FCC/other', 'PROPERTY: Calculated Density (g/cm$
        'BCC/FCC/other BCC', 'BCC/FCC/other FCC', 'BCC/FCC/other OTHER',
        'Single/Multiphase ', 'Single/Multiphase M', 'Single/Multiphase S']
 
+def return_feature_names():
+    return feature_names
+    
 def normalize_and_alphabetize_formula(formula):
     '''Normalizes composition labels. Used to enable matching / groupby on compositions.'''