# # import sbol3
# import sbol2
# # doc = sbol3.Document()

# # colec = sbol3.Collection('FinalProducts', name='FinalProducts')
# # doc.add(colec)

# # # print(sbol3.get_namespace())

# # sbol_objs = doc.objects
# # sbol_objs_names = [x.name for x in sbol_objs]
# # if 'FinalProducts' not in sbol_objs_names:
# #     colec = sbol3.Collection('FinalProducts', name='FinalProducts')
# #     # colec.members.append('test')
# #     doc.add(colec)
# # else:
# #     colec = sbol_objs[sbol_objs_names.index('FinalProducts')]

# # colec.members.append('this')

# sbol2.CombinatorialDerivation()
# sbol2.ComponentDefinition()
# sbol2.getHomespace()
# sbol2.URIRef

