abstract-method:29:0:29:21:DerivedHashable:Method '__hash__' is abstract in class 'Hashable' but is not overridden in child class 'DerivedHashable':INFERENCE
abstract-method:32:0:32:21:DerivedIterable:Method '__iter__' is abstract in class 'Iterable' but is not overridden in child class 'DerivedIterable':INFERENCE
abstract-method:35:0:35:23:DerivedCollection:Method '__contains__' is abstract in class 'Container' but is not overridden in child class 'DerivedCollection':INFERENCE
abstract-method:35:0:35:23:DerivedCollection:Method '__iter__' is abstract in class 'Iterable' but is not overridden in child class 'DerivedCollection':INFERENCE
abstract-method:35:0:35:23:DerivedCollection:Method '__len__' is abstract in class 'Sized' but is not overridden in child class 'DerivedCollection':INFERENCE
