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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def tokeninfo(self, jwt):
 """Returns user profile based on the user's jwt Validates a JSON Web Token (signature and expiration) and returns the user information associated with the user id (sub property) of the token. Args: jwt (str):
 User's jwt Returns: The user profile. """

        warnings.warn("/tokeninfo will be deprecated in future releases", DeprecationWarning)
        return self.post(
            url='https://{}/tokeninfo'.format(self.domain),
            data={'id_token': jwt},
            headers={'Content-Type': 'application/json'}
        )