5 M: f stream-close drop ;
6 M: f set-timeout 2drop ;
8 M: f stream-readln drop f ;
9 M: f stream-read1 drop f ;
10 M: f stream-read 2drop f ;
12 M: f stream-write1 2drop ;
13 M: f stream-write 2drop ;
14 M: f stream-terpri drop ;
15 M: f stream-flush drop ;
17 M: f stream-format 3drop ;
18 M: f with-nested-stream rot drop with-stream* ;