DOC add docstring to multilabel model
DOC add docstring to multilabel model

wattlebird/pystruct,amueller/pystruct,massmutual/pystruct,pystruct/pystruct,d-mittal/pystruct,pystruct/pystruct,amueller/pystruct,massmutual/pystruct,d-mittal/pystruct,wattlebird/pystruct