Get a Product Attribute

curl --request GET \
  --url {protocol}://{host}/wp-json/cocart/v1/products/attributes/{id}

{
  "id": 123,
  "name": "<string>",
  "slug": "<string>",
  "type": "<string>",
  "order_by": "<string>",
  "has_archives": true,
  "links": {
    "self": [
      {
        "href": "<string>"
      }
    ],
    "collection": [
      {
        "href": "<string>"
      }
    ]
  }
}