def classImplementsOnly(cls, *interfaces):
    spec = implementedBy(cls)
    spec.declared = ()
    spec.inherit = None
    classImplements(cls, *interfaces)
Extract every stacking object in a client call
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/zope/interface/declarations.py/classImplementsOnly--crossover with--dataset/ETHPy150Open tioui/Vim_Eiffel_IDE/pyplugin/eiffel_class.py/create_row_object_stack