code: def setup_method(self, dag_setup):
      self.dag = dag_setup
  
      self.open_search = OpenSearchQueryOperator(
          task_id="test_opensearch_query_operator",
          index_name="test_index",
          query={
              "size": 5,
              "query": {
                  "multi_match": {
                      "query": "test",
                      "fields": ["test_title^2", "test_type"],
                  }
              },
          },
      )
  
imports: from __future__ import annotations
  import pytest
  from opensearchpy import Document, Keyword, Text
  from airflow.models import DAG
  from airflow.providers.opensearch.operators.opensearch import OpenSearchAddDocumentOperator, OpenSearchCreateIndexOperator, OpenSearchQueryOperator
  from airflow.utils.timezone import datetime
label_desc: Use image node_id 1 for calling the TestOpenSearchQueryOperator obj's underlying member method code with example usage: obj.setup_method(dag_setup) without return types