Fix review comments

airflow/providers/amazon/aws/hooks/batch_client.py

@@ -27,7 +27,7 @@
 from __future__ import annotations
 
 import asyncio
-from random import sample, uniform
+from random import uniform
 from time import sleep
 from typing import Any
 
@@ -641,9 +641,7 @@ async def delay(delay: int | float | None = None) -> None:  # type: ignore[overr
             when many concurrent tasks request job-descriptions.
         """
         if delay is None:
-            delay = sample(
-                list(range(BatchClientAsyncHook.DEFAULT_DELAY_MIN, BatchClientAsyncHook.DEFAULT_DELAY_MAX)), 1
-            )[0]
+            delay = uniform(BatchClientHook.DEFAULT_DELAY_MIN, BatchClientHook.DEFAULT_DELAY_MAX)
         else:
             delay = BatchClientAsyncHook.add_jitter(delay)
         await asyncio.sleep(delay)

docs/apache-airflow-providers-amazon/operators/batch.rst

@@ -38,6 +38,7 @@ Submit a new AWS Batch job
 ==========================
 
 To submit a new AWS Batch job and monitor it until it reaches a terminal state you can
+also run this operator in deferrable mode by setting ``deferrable`` param to ``True``.
 use :class:`~airflow.providers.amazon.aws.operators.batch.BatchOperator`.
 
 .. exampleinclude:: /../../tests/system/providers/amazon/aws/example_batch.py