local :b make-blob 10 #ten bytes of initial size
set-to b 0 255
!. get-from b 0 #prints 255
!. b #prints (blob:ff000000000000000000)
local :b2 make-blob 3
set-to b2 0 97
set-to b2 1 98
set-to b2 2 99
!. b #prints (blob:"abc")
!. !encode!utf-8 b #prints "abc"