def create_property() -> ???:
    some_really_bad_code = True
    def setter(value):
         some_really_bad_code = value
    def getter():
        return some_really_bad_code
    def deller():
        some_really_bad_code = None
    return property(getter, setter, deller)

class Example:
    foo: str
    
    def bar(self, value: str) -> str:
        return value
    # end def

    @property
    def batz(self) -> str:
        return 'test2'
    # end def

    @batz.setter
    def batz(self, value: str):
        pass
    # end def
# end class


# variable

>>> typing.get_type_hints(Example)
{'foo': <class 'str'>}

>>> Example.__annotations__
{'foo': <class 'str'>}


# function

>>> typing.get_type_hints(Example.bar)
{'value': <class 'str'>, 'return': <class 'str'>}

>>> Example.bar.__annotations__
{'value': <class 'str'>, 'return': <class 'str'>}


# property
# not in the class's hints
>>> 'batz' in  typing.get_type_hints(Example)
False

>>> typing.get_type_hints(Example.batz)
Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "/usr/local/Cellar/python/3.6.4_3/Frameworks/Python.framework/Versions/3.6/lib/python3.6/typing.py", line 1527, in get_type_hints
    'or function.'.format(obj))
TypeError: <property object at 0x10e81b868> is not a module, class, method, or function.

>>> Example.batz.__annotations__
Traceback (most recent call last):
  File "<input>", line 1, in <module>
AttributeError: 'property' object has no attribute '__annotations__'