def get_bibl_uuid(image_id)
      url = "#{@server_url}/items/local_image_id/#{image_id}.json"   
      json = self.get_json(url)
      bibl_uuid = nil
      if json["nyplAPI"]["response"]["numResults"].to_i > 0
        bibl_uuid = json["nyplAPI"]["response"]["uuid"]
      end
     
      return bibl_uuid
    end
def get_bibl_uuid(image_id)
      url = "#{@server_url}/items/local_image_id/#{image_id}.json"   
      json = self.get_json(url)
      bibl_uuid = nil
      if json["nyplAPI"]["response"]["numResults"].to_i > 0
        bibl_uuid = json["nyplAPI"]["response"]["uuid"]
      end
     
      return bibl_uuid
    end
get bibliographic container uuid from an image_id