def test_unique_prototypes(self):
O = OqmdInterface()
p = O.get_distinct_prototypes(chemical_formula='NiCuCN',
max_atoms=8)
assert(len(p) == 19)
print('{} distinct prototypes found'.format(len(p)))
def test_unique_prototypes2(self):
O = OqmdInterface()
p = O.get_distinct_prototypes(chemical_formula='TiO2')
print(len(p))
