StateManager: update helper function documentation
StateManager: update helper function documentation

Famous/framework,colllin/famous-framework,woltemade/framework,KraigWalker/framework,infamous/famous-framework,Famous/framework,SvitlanaShepitsena/shakou,colllin/famous-framework,tbossert/framework,ildarsamit/framework,tbossert/framework,KraigWalker/framework,SvitlanaShepitsena/framework-1,infamous/framework,SvitlanaShepitsena/framework,infamous/famous-framework,jeremykenedy/framework,SvitlanaShepitsena/remax-banner,SvitlanaShepitsena/remax-banner,SvitlanaShepitsena/framework,infamous/framework,jeremykenedy/framework,SvitlanaShepitsena/shakou,ildarsamit/framework,woltemade/framework,SvitlanaShepitsena/framework-1