code: def test_init(self):
      op = EmrAddStepsOperator(
          task_id="test_task",
          job_flow_id="j-8989898989",
          aws_conn_id="aws_default",
          steps=self._config,
      )
      assert op.job_flow_id == "j-8989898989"
      assert op.aws_conn_id == "aws_default"
  
imports: from __future__ import annotations
  import json
  import os
  from datetime import timedelta
  from unittest.mock import MagicMock, call, patch
  import pytest
  from jinja2 import StrictUndefined
  from airflow.exceptions import AirflowException, TaskDeferred
  from airflow.models import DAG, DagRun, TaskInstance
  from airflow.providers.amazon.aws.operators.emr import EmrAddStepsOperator
  from airflow.providers.amazon.aws.triggers.emr import EmrAddStepsTrigger
  from airflow.utils import timezone
  from tests.test_utils import AIRFLOW_MAIN_FOLDER
label_desc: Use image node_id 2 for calling the TestEmrAddStepsOperator obj's underlying member method code with example usage: obj.test_init() without return types