}

    @Internal
    protected
    fun getContributorsFromPullRequests(): Set<GitHubUser> {
        if (!milestone.isPresent) {
            throw IllegalStateException("Milestone not set: please rerun the task with `--milestone <milestone>`")
        }
        val prs: MutableList<GitHubPullRequest> = mutableListOf()
        (1..10).forEach { page ->
            val prPage = getMergedContributorPullRequests(page)