code: def test_execute(self):
      conn = boto3.client("s3")
      conn.create_bucket(Bucket=self.dest_bucket)
      operator = LocalFilesystemToS3Operator(
          task_id="s3_to_file_sensor",
          dag=self.dag,
          filename=self.testfile1,
          dest_key=self.dest_key,
          dest_bucket=self.dest_bucket,
          **CONFIG,
      )
      operator.execute(None)
  
      objects_in_dest_bucket = conn.list_objects(
          Bucket=self.dest_bucket, Prefix=self.dest_key
      )
      # there should be object found, and there should only be one object found
      assert len(objects_in_dest_bucket["Contents"]) == 1
      # the object found should be consistent with dest_key specified earlier
      assert (
          objects_in_dest_bucket["Contents"][0]["Key"] == self.dest_key
      )
  
file_path: airflow/tests/providers/amazon/aws/transfers/test_local_to_s3.py
imports: from __future__ import annotations
  import datetime
  import os
  import boto3
  import pytest
  from moto import mock_s3
  from airflow.models.dag import DAG
  from airflow.providers.amazon.aws.transfers.local_to_s3 import LocalFilesystemToS3Operator
label_desc: Use image node_id 5 for calling the TestFileToS3Operator obj's underlying member method code with example usage: obj.test_execute() without return types