fix for test
fix for test

Agent007/deepchem,Agent007/deepchem,joegomes/deepchem,lilleswing/deepchem,joegomes/deepchem,miaecle/deepchem,miaecle/deepchem,peastman/deepchem,ktaneishi/deepchem,deepchem/deepchem,rbharath/deepchem,deepchem/deepchem,Agent007/deepchem,lilleswing/deepchem,peastman/deepchem,rbharath/deepchem,miaecle/deepchem,ktaneishi/deepchem,lilleswing/deepchem,ktaneishi/deepchem