2 Bytes utilities
|  (require (planet untyped/unlib/bytes)) | 
Useful bytes utilities.
| (bytes+false? item) → boolean? | 
|   item : any | 
Returns #t if item is a bytes and #f otherwise.
| (ensure-bytes item) → any | 
|   item : any | 
Converts string arguments to bytes: passes all other arguments straight through.