import collections
from collections import namedtuple
from typing import NamedTuple, TypedDict


class C:
    lower = 0
    CONSTANT = 0
    mixedCase = 0
    _mixedCase = 0
    mixed_Case = 0
    myObj1 = collections.namedtuple("MyObj1", ["a", "b"])
    myObj2 = namedtuple("MyObj2", ["a", "b"])
    Employee = NamedTuple('Employee', [('name', str), ('id', int)])
    Point2D = TypedDict('Point2D', {'in': int, 'x-y': int})


class D(TypedDict):
    lower: int
    CONSTANT: str
    mixedCase: bool
    _mixedCase: list
    mixed_Case: set

class E(D):
    lower: int
    CONSTANT: str
    mixedCase: bool
    _mixedCase: list
    mixed_Case: set