code: def _convert_item_to_json_bytes(item: dict[str, Any]) -> bytes:
      return (json.dumps(item, cls=JSONEncoder) + "\n").encode("utf-8")
  
imports: from __future__ import annotations
  import json
  import os
  from copy import copy
  from datetime import datetime
  from decimal import Decimal
  from functools import cached_property
  from tempfile import NamedTemporaryFile
  from typing import IO, TYPE_CHECKING, Any, Callable, Sequence
  from uuid import uuid4
  from airflow.providers.amazon.aws.hooks.base_aws import AwsBaseHook
  from airflow.providers.amazon.aws.hooks.dynamodb import DynamoDBHook
  from airflow.providers.amazon.aws.hooks.s3 import S3Hook
  from airflow.providers.amazon.aws.transfers.base import AwsToAwsBaseOperator
label_desc: Use image node_id 1 for calling a global function with example usage: _convert_item_to_json_bytes(item) and returns: unknown