question: remove all sessions from the store concode_field_sep io.vertx.ext.web.sstore.SessionStore delegate concode_field_sep Observable<Boolean> putObservable concode_elem_sep Observable<Session> getObservable concode_elem_sep void clear concode_elem_sep SessionStore newInstance concode_elem_sep Object getDelegate concode_elem_sep Session createSession concode_elem_sep void delete concode_elem_sep void put concode_elem_sep void size concode_elem_sep Observable<Integer> sizeObservable concode_elem_sep void get concode_elem_sep Observable<Boolean> deleteObservable concode_elem_sep void close
target: Observable < Boolean > function ( ) { io . vertx . rx . java . ObservableFuture < Boolean > loc0 = io . vertx . rx . java . RxHelper . observableFuture ( ) ; clear ( loc0 . toHandler ( ) ) ; return loc0 ; }