/// <summary>
/// search repos
/// http://developer.github.com/v3/search/#search-repositories
/// </summary>
/// <param name="search"></param>
/// <returns>List of repositories</returns>
public IObservable <SearchRepositoryResult> SearchRepo(SearchRepositoriesRequest search)
{
Ensure.ArgumentNotNull(search, nameof(search));
return(_client.SearchRepo(search).ToObservable());
}