[2021-06-10] Nylas Node.js SDK v5.5.0

New

• We added a custom error class NylasApiError to add more error details returned from the API.
• We added support for read-only fields.
• We enabled Nylas API version 2.2 support.

Bug Fixes

• We fixed a bug where saving a draft object with an undefined filesIds would throw an error.
• We replaced the deprecated request library with node-fetch.
• We fixed typings for classes that extend RestfulModelCollection or RestfulModelInstance.