Hi there, welcome to the Community !
Last time I played around with Tinkerpop was back in 2014 ; never could it get to work really. That was one of the reasons to bite the bullet and go for using Neo4J and Cypher natively.
Never looked back since, it migth very well be that the lack of documentation indicates no-one is using this combi actively. Might I ask why you are looking into the Tinkerpop route?
Using Cypher and a Bolt connection is very easy and well supported for many languages.
