def connection(self):

        if self._connection is None:
            connect_str = setting("AZURE_STORAGE_CONNECTION_STRING")

            # Create the BlobServiceClient object which will be used to create a container client
            blob_service_client = BlobServiceClient.from_connection_string(connect_str)

            # Create a unique name for the container
            container_name = "pac-files"

            # Create a blob client using the local file name as the name for the blob
            self._connection = blob_service_client

        return self._connection