Не указаны данные о продукте для создания продукта [woocommerce_api_missing_product_data]

Я скачал последний репозиторий API WooCommerce PHP. Я следовал Документам API REST woocommerce для создания тестового продукта. Я скопировал образец из их документации, но он не работает. Вот мой код

API документы: http://woocommerce.github.io/woocommerce-rest-api-docs/?php#create-a-product

<?php

require_once("vendor/autoload.php");

use Automattic\WooCommerce\Client;

$woocommerce = new Client(
'http://wocom.dev',
'ck_c62182de9983593c9da6ed5c4642ff50e79e1b4f',
'cs_8f69a9d588abb9ca1b0309f22ac2cd7841496d56',
[
'version' => 'v3',
'ssl_verify'=> 'false',
'timeout' => 30000
]
);$data = [
'name' => 'Ship Your Idea',
'type' => 'variable',
'description' => 'Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo.',
'short_description' => 'Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.',
'categories' => [
[
'id' => 9
],
[
'id' => 14
]
],
'images' => [
[
'src' => 'http://demo.woothemes.com/woocommerce/wp-content/uploads/sites/56/2013/06/T_4_front.jpg',
'position' => 0
],
[
'src' => 'http://demo.woothemes.com/woocommerce/wp-content/uploads/sites/56/2013/06/T_4_back.jpg',
'position' => 1
],
[
'src' => 'http://demo.woothemes.com/woocommerce/wp-content/uploads/sites/56/2013/06/T_3_front.jpg',
'position' => 2
],
[
'src' => 'http://demo.woothemes.com/woocommerce/wp-content/uploads/sites/56/2013/06/T_3_back.jpg',
'position' => 3
]
],
'attributes' => [
[
'id' => 6,
'position' => 0,
'visible' => false,
'variation' => true,
'options' => [
'Black',
'Green'
]
],
[
'name' => 'Size',
'position' => 0,
'visible' => true,
'variation' => true,
'options' => [
'S',
'M'
]
]
],
'default_attributes' => [
[
'id' => 6,
'option' => 'Black'
],
[
'name' => 'Size',
'option' => 'S'
]
],
'variations' => [
[
'regular_price' => '19.99',
'image' => [
[
'src' => 'http://demo.woothemes.com/woocommerce/wp-content/uploads/sites/56/2013/06/T_4_front.jpg',
'position' => 0
]
],
'attributes' => [
[
'id' => 6,
'option' => 'black'
],
[
'name' => 'Size',
'option' => 'S'
]
]
],
[
'regular_price' => '19.99',
'image' => [
[
'src' => 'http://demo.woothemes.com/woocommerce/wp-content/uploads/sites/56/2013/06/T_3_front.jpg',
'position' => 0
]
],
'attributes' => [
[
'id' => 6,
'option' => 'green'
],
[
'name' => 'Size',
'option' => 'M'
]
]
]
]
];try
{
print_r($woocommerce->post('products', $data));

}
catch(Exception $e)
{
echo $e->getMessage();
}

Ошибка :

Error: No product data specified to create product [woocommerce_api_missing_product_data]