code: def create_destination_id(client, container, name):
          # type: (azure.storage.StorageClient, str, str) -> str
          
          path = str(pathlib.PurePath(name))
          return ';'.join((client.primary_endpoint, container, path))
docs: Create a unique destination id
          :param azure.storage.StorageClient client: storage client
          :param str container: container name
          :param str name: entity name
          :rtype: str
          :return: unique id for the destination