Neo4j + Kafka sink, CUD strategy, delete all relations

I use CUD strategy to sync the data with neo4j via kafka.
According to the documentation during operations with relations I have to use from and to properties. They are required.
There is also only one example with delete operation but for node.
and there are no examples related to relations.

Is there any way to use CUD strategy and delete all relations of particular type to another nodes?
Here the example of what query I need to get.
MATCH (:node1 {id: 1})->[r:RELATION_TYPE_1 {id: 1}]->() DELETE r;