A dictionary of key-value pairs representing the tags you want to add to a previously sent interaction. New tags are added, and existing tags are updated if included. Tags previously sent but not included in this payload remain unchanged.
The input of the interactions to which the tags refers to. If not given the interaction will be determined using the interaction time-stamp and the end-user id.
The output of the interactions to which the tags refers to. If not given the interaction will be determined using the interaction time-stamp and the end-user id.