DeprecationWarning: The `util.isArray` API is deprecated. Please use `Array.isArray()`

[svefro]

[DEP0044] DeprecationWarning: The util.isArray API is deprecated. Please use Array.isArray() instead.

Could you update internals so we do not get this deprecation warning all the time.

(node:3816) [DEP0044] DeprecationWarning: The `util.isArray` API is deprecated. Please use `Array.isArray()` instead.
    at FormData.append (/home/username/pcloud/node_modules/form-data/lib/form_data.js:63:12)
    at Request.attach (/home/username/pcloud/node_modules/superagent/lib/node/index.js:280:25)
    at /home/username/pcloud/node_modules/pcloud-sdk-js/lib/api/ApiRequest.js:65:11
    at Array.forEach (<anonymous>)
    at ApiRequest (/home/username/pcloud/node_modules/pcloud-sdk-js/lib/api/ApiRequest.js:60:11)
    at ApiMethod (/home/username/pcloud/node_modules/pcloud-sdk-js/lib/api/ApiMethod.js:49:34)
    at Object.api (/home/username/pcloud/node_modules/pcloud-sdk-js/lib/client/createClient.js:51:35)
    at /home/username/pcloud/node_modules/pcloud-sdk-js/lib/client/methods/upload.js:24:19
    at uploadFile (/home/username/pcloud/upload.js:180:12)
    at main (/home/username/pcloud/upload.js:77:13)