let i = 0 ; export class Group { name : String ; owners : [ String ] ; members : [ String ] ; administrators : [ String ] ; tasks : [ String ] ; proposals : [ String ] ; id : any ; metadata : String ; constructor ( name , owners , members , proposals ? , administrators ? , tasks ? , metadata ? ) { this . name = name ; this . owners = owners ; this . members = members ; this . proposals = proposals ; this . administrators = administrators ; this . tasks = tasks ; this . metadata = metadata ; this . id = i ; i += 1 ; } }