collections 中 typing 中对象的引用

from typing import (
    Callable as Callable,
    Container as Container,
    Hashable as Hashable,
    Iterable as Iterable,
    Iterator as Iterator,
    Sized as Sized,
    Generator as Generator,
    ByteString as ByteString,
    Reversible as Reversible,
    Mapping as Mapping,
    MappingView as MappingView,
    ItemsView as ItemsView,
    KeysView as KeysView,
    ValuesView as ValuesView,
    MutableMapping as MutableMapping,
    Sequence as Sequence,
    MutableSequence as MutableSequence,
    MutableSet as MutableSet,
    AbstractSet as Set,
)