/// <summary>
/// search labels
/// https://developer.github.com/v3/search/#search-labels
/// </summary>
/// <param name="search"></param>
/// <returns>List of labels</returns>
public IObservable <SearchLabelsResult> SearchLabels(SearchLabelsRequest search)
{
Ensure.ArgumentNotNull(search, nameof(search));
return(_client.SearchLabels(search).ToObservable());
}