2 resource(%d) of type (stream filter)
3 string(12) "Uryyb Gurer!"
5 resource(%d) of type (stream filter)
6 string(12) "HELLO THERE!"
8 resource(%d) of type (stream filter)
9 string(12) "hello there!"
11 resource(%d) of type (stream filter)
12 filter: string.toupper
13 resource(%d) of type (stream filter)
14 string(12) "URYYB GURER!"