def get_library_for_site site_id
      url = base_api_url + "/sites/#{site_id}/drive"
      @drives = JSON.parse(HTTParty.get(url,headers: set_headers).body)
    end
def get_library_for_site site_id
      url = base_api_url + "/sites/#{site_id}/drive"
      @drives = JSON.parse(HTTParty.get(url,headers: set_headers).body)
    end
Get the document library for a site