/// <summary>
/// Gets an individual milestone in an issue tracker.
/// Public and private issue trackers require the caller to authenticate with an account that has appropriate authorisation.
/// </summary>
/// <param name="milestoneId">The milestone identifier.</param>
/// <returns></returns>
public async Task <Milestone> GetMilestone(int?milestoneId)
{
return(await _repositoriesEndPoint.GetMilestone(milestoneId));
}