prow/plugins/plugins.go
func (a *Agent) InitializeCommentPruner(org, repo string, pr int) {
	a.commentPruner = commentpruner.NewEventClient(
		a.GitHubClient, a.Logger.WithField("client", "commentpruner"),
		org, repo, pr,
	)
}
func (a *Agent) InitializeCommentPruner(org, repo string, pr int) {
	a.commentPruner = commentpruner.NewEventClient(
		a.GitHubClient, a.Logger.WithField("client", "commentpruner"),
		org, repo, pr,
	)
}
// InitializeCommentPruner attaches a commentpruner.EventClient to the agent to handle
// pruning comments.