':calls: `POST /user/keys <http://developer.github.com/v3/users/keys>`_
:param title: string
:param key: string
:rtype: :class:`github.UserKey.UserKey`'

def create_key(self, title, key):

    assert isinstance(title, (str, unicode)), title
    assert isinstance(key, (str, unicode)), key
    post_parameters = {'title': title, 'key': key}
    (headers, data) = self._requester.requestJsonAndCheck('POST', '/user/keys', input=post_parameters)
    return github.UserKey.UserKey(self._requester, headers, data, completed=True)
