abstract-method:34:0:34:21:DerivedHashable:Method '__hash__' is abstract in class 'Hashable' but is not overridden in child class 'DerivedHashable':INFERENCE
abstract-method:37:0:37:21:DerivedIterable:Method '__iter__' is abstract in class 'Iterable' but is not overridden in child class 'DerivedIterable':INFERENCE
abstract-method:40:0:40:23:DerivedCollection:Method '__contains__' is abstract in class 'Container' but is not overridden in child class 'DerivedCollection':INFERENCE
abstract-method:40:0:40:23:DerivedCollection:Method '__iter__' is abstract in class 'Iterable' but is not overridden in child class 'DerivedCollection':INFERENCE
abstract-method:40:0:40:23:DerivedCollection:Method '__len__' is abstract in class 'Sized' but is not overridden in child class 'DerivedCollection':INFERENCE
