This attribute reflects *only* the value of the ``total`` argument

to the current ``TypedDict`` class, not whether the class is semantically

total. For example, a ``TypedDict`` with ``__total__`` set to True may

have keys marked with :data:`NotRequired`, or it may inherit from another

``TypedDict`` with ``total=False``. Therefore, it is generally better to use

:attr:`__required_keys__` and :attr:`__optional_keys__` for introspection.

.. note::

If ``from __future__ import annotations`` is used or if annotations

are given as strings, annotations are not evaluated when the

``TypedDict`` is defined. Therefore, the runtime introspection that

``__required_keys__`` and ``__optional_keys__`` rely on may not work

properly, and the values of the attributes may be incorrect.