API batch operations

It would be nice to be able to do batch operations with the API, like getting device variables of multiple devices at once or updating variables for multiple devices.

Context:
Every night we run a job that updates tokens on our devices. We currently have about 300. It gets a certain environment variable for every device, checks if the token has changed and if so, updates it. Recently we had to update the tokens of all devices, which led to a 429 Too Many Requests on the API. We will change our logic to use exponential backoff but if we could to batch operations, this could be reduced to two requests.