@AutoPayloadType(description = "The created event, if present")
suspend fun addArtefactToIssue(input: AddArtefactToIssueInput, dfe: DataFetchingEnvironment): AddedArtefactEvent?

Adds a Artefact to an Issue, requires MANAGE_ISSUES on any Trackable the issue is on and READ on the Artefact. Additionally, the Artefact must be part of a Trackable the Issue is on. If the Artefact is already on the Issue, no event is created.