CreateSession.
        [Preview API] Creates a session, a wrapper around a feed that can store additional metadata on the packages published to it.
        :param :class:`<SessionRequest> <azure.devops.v5_0.provenance.models.SessionRequest>` session_request: The feed and metadata for the session
        :param str protocol: The protocol that the session will target
        :rtype: :class:`<SessionResponse> <azure.devops.v5_0.provenance.models.SessionResponse>`

def create_session(self, session_request, protocol):
        """CreateSession.
        [Preview API] Creates a session, a wrapper around a feed that can store additional metadata on the packages published to it.
        :param :class:`<SessionRequest> <azure.devops.v5_0.provenance.models.SessionRequest>` session_request: The feed and metadata for the session
        :param str protocol: The protocol that the session will target
        :rtype: :class:`<SessionResponse> <azure.devops.v5_0.provenance.models.SessionResponse>`
        """
        route_values = {}
        if protocol is not None:
            route_values['protocol'] = self._serialize.url('protocol', protocol, 'str')
        content = self._serialize.body(session_request, 'SessionRequest')
        response = self._send(http_method='POST',
                              location_id='503b4e54-ebf4-4d04-8eee-21c00823c2ac',
                              version='5.0-preview.1',
                              route_values=route_values,
                              content=content)
        return self._deserialize('SessionResponse', response)