Reference

All functions
Date2EpochMilli()	Convert a date into an epoch in milliseconds
EpochMilli2Date()	Convert an epoch in milliseconds into a date
ThingsboardApi-class	Thingboard API Class
ThingsboardApi_checkToken	Check if the token is timeouted and refresh it if necessary
ThingsboardApi_getKeys	Fetch data keys for an entity
ThingsboardApi_getTelemetry	Fetch telemetry
ThingsboardApi_getToken	Get authorisation token from thingsboard server for a specific device
ThingsboardApi_getValues	Fetch telemetry