.abstructmethod: |F <: GenericCallable|(F) -> F
.abstructclassmethod: |F <: GenericCallable|(F) -> F
.abstructstaticmethod: |F <: GenericCallable|(F) -> F
.ABCMeta: ClassType
.ABCMeta <: Type
.ABCMeta.
__instancecheck__: (self: .ABCMeta, instance: Obj) -> Bool
__subclasscheck__: (self: .ABCMeta, subclass: Type) -> Bool
register: (self: .ABCMeta, subclass: Type) -> NoneType
.ABC: ClassType