add docstring gs
add docstring gs

JioCloud/stevedore,openstack/stevedore,varunarya10/stevedore,citrix-openstack-build/stevedore,mandeepdhami/stevedore,JioCloud/stevedore,nelsnelson/stevedore,varunarya10/stevedore,nelsnelson/stevedore,mandeepdhami/stevedore,citrix-openstack-build/stevedore