Module Node.Buffer
Node Buffer API
type encoding = [ | `ascii| `utf8| `utf16le| `ucs2| `base64| `base64url| `latin1| `binary| `hex
 ];let isBuffer: 'a => bool;let fromString: string => t;let fromStringWithEncoding: string => encoding:encoding => t;let toString: ?encoding:encoding => t => string;let concat: array(t) => t;