How to use the sparkmagic.livyclientlib.exceptions.SessionManagementException function in sparkmagic

def _remove_session(self, name):
        if name in self.get_sessions_list():
            self._sessions[name].delete()
            del self._sessions[name]
        else:
            raise SessionManagementException(u"Could not find '{}' session in list of saved sessions. Possible sessions are {}"
                                             .format(name, self.get_sessions_list()))

def add_session(self, name, session):
        if name in self._sessions:
            raise SessionManagementException(u"Session with name '{}' already exists. Please delete the session"
                                             u" first if you intend to replace it.".format(name))

        self._sessions[name] = session

def get_any_session(self):
        number_of_sessions = len(self._sessions)
        if number_of_sessions == 1:
            key = self.get_sessions_list()[0]
            return self._sessions[key]
        elif number_of_sessions == 0:
            raise SessionManagementException(u"You need to have at least 1 client created to execute commands.")
        else:
            raise SessionManagementException(u"Please specify the client to use. Possible sessions are {}".format(
                self.get_sessions_list()))

def get_any_session(self):
        number_of_sessions = len(self._sessions)
        if number_of_sessions == 1:
            key = self.get_sessions_list()[0]
            return self._sessions[key]
        elif number_of_sessions == 0:
            raise SessionManagementException(u"You need to have at least 1 client created to execute commands.")
        else:
            raise SessionManagementException(u"Please specify the client to use. Possible sessions are {}".format(
                self.get_sessions_list()))

def get_session(self, name):
        if name in self._sessions:
            return self._sessions[name]
        raise SessionManagementException(u"Could not find '{}' session in list of saved sessions. Possible sessions are {}".format(
            name, self.get_sessions_list()))