Failed to configure tokenizer

[lspliner]

var Az = require("az");
var tokens = Az.Tokens();
tokens.append(input, {});
tokens = tokens.done();

This code throws exception on line 3:
config = config ? Az.extend(this.config, config) : this.config;
ReferenceError: Az is not defined

[andrey-pavlenko]

Добрый день.

linux, node v9.11.1

Такой код (без config) работает:

const Az = require('az');
const tokens = Az.Tokens('Мама мыла раму').done(['SPACE'], true));

Такой код (Tokens вызывается с config):

const Az = require('az');
const tokens = Az.Tokens('Мама <b>мыла</b> раму', { html: true })
  .done(['SPACE'], true)
);

Ошибка:

/home/node_modules/az/dist/az.js:1700
        this.config = config ? Az.extend(defaults, config) : defaults;
                               ^

ReferenceError: Az is not defined
    at new Tokens (/home/node_modules/az/dist/az.js:1700:32)
    at Object.Tokens (/home/node_modules/az/dist/az.js:1707:14)
    at Object.<anonymous> (/home/src/message.js:8:19)
    at Module._compile (internal/modules/cjs/loader.js:654:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:665:10)
    at Module.load (internal/modules/cjs/loader.js:566:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:506:12)
    at Function.Module._load (internal/modules/cjs/loader.js:498:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:695:10)
    at startup (internal/bootstrap/node.js:201:19)