POST: /auth/<mount point>/login Produces: 200 application/json

        :param name: Authenticate against only the named certificate role, returning its policy list if successful. If
            not set, defaults to trying all certificate roles and returning any one that matches.
        :type name: str | unicode
        :param cacert: The value used here is for the Vault TLS Listener CA certificate, not the CA that issued the
            client authentication certificate. This can be omitted if the CA used to issue the Vault server certificate
            is trusted by the local system executing this command.
        :type cacert: str | bool
        :param cert_pem: Location of the cert.pem used to authenticate the host.
        :tupe cert_pem: str | unicode
        :param key_pem: Location of the public key.pem used to authenticate the host.
        :param key_pem: str | unicode
        :param mount_point:
        :type mount_point:
        :param use_token: If the returned token is stored in the client
        :param use_token: bool
        :return: The response of the login request.
        :rtype: requests.Response
        r