let isBuffer: 'a => bool;
let fromString: string => t;
type encoding = [
|
`ascii
|
`utf8
|
`utf16le
|
`usc2
|
`base64
|
`latin1
|
`binary
|
`hex
];
let fromStringWithEncoding: string => encoding => t;
let toString: t => string;
let toStringWithEncoding: t => encoding => string;
let concat: array(t) => t;