typing-extensions: typing-extensions (Backported and Experimental Type Hints for Python)
typing-extensions:
typing-extensions: The typing module was added to the standard library in Python 3.5 on
typing-extensions: a provisional basis and will no longer be provisional in Python 3.7.
typing-extensions: However, this means users of Python 3.5 - 3.6 who are unable to
typing-extensions: upgrade willnot be able to take advantage of new types added to the
typing-extensions: typing module, such as typing.Text or typing.Coroutine.
typing-extensions:
typing-extensions:
typing-extensions:  Homepage: https://pypi.org/project/typing-extensions/
typing-extensions: