:return: Mapping from hall name to associated link in SUDS. Creates inverted index from id to hall.

def create_hall_to_link_mapping(self):
        """
        :return: Mapping from hall name to associated link in SUDS. Creates inverted index from id to hall.
        """
        laundry_path = pkg_resources.resource_filename("penn", "data/laundry.csv")
        with open(laundry_path, "r") as f:
            reader = csv.reader(f)
            for row in reader:
                hall_id, hall_name, location, uuid = row
                hall_id = int(hall_id)
                self.hall_to_link[hall_name] = ALL_URL + uuid
                self.id_to_hall[hall_id] = hall_name
                self.id_to_location[hall_id] = location
                self.hall_id_list.append({"hall_name": hall_name, "id": hall_id, "location": location})