def get_orchestrator_server_versions(self) -> dict:
    """Returns available orchestrator versions

    .. list-table::
        :header-rows: 1

        * - Swagger Section
          - Method
          - Endpoint
        * - gmsServer
          - GET
          - /gms/versions

    :return: Returns dictionary of orchestrator server versions \n
        * keyword **current** (`str`): Current Orchestrator release
          version, e.g. ``9.0.3.40345``
        * keyword **installed** (`list[str]`): List of all installed
          orchestrator versions
    :rtype: dict
    """
    return self._get("/gms/versions")