Converts UUID strings to and from buffers.
const uuidBuffer = require('uuid-buffer');
> const b = uuidBuffer.toBuffer('12345678-1234-1234-1234-123456781234');
<Buffer 12 34 56 78 12 34 12 34 12 34 12 34 56 78 12 34>
> uuidBuffer.toString(b);
'12345678-1234-1234-1234-123456781234'