gistfile1.txt

bret-mbr:testrun bret$ node generate.js 
key is <Buffer 09 19 de 78 56 e7 dc 1a a8 c4 88 d5 1a b9 5d e7 4c 20 5e 5c e6 6e 94 12 6e 14 4e b5 13 10 e7 ca>
_stream_readable.js:561
    var ret = dest.write(chunk);
                   ^

TypeError: dest.write is not a function
    at ReadStream.ondata (_stream_readable.js:561:20)
    at emitOne (events.js:96:13)
    at ReadStream.emit (events.js:188:7)
    at readableAddChunk (_stream_readable.js:172:18)
    at ReadStream.Readable.push (_stream_readable.js:130:10)
    at onread (fs.js:1774:12)
    at FSReqWrap.wrapper [as oncomplete] (fs.js:675:17)