code: def graphql(
      self, query: str, variables: Optional[Dict[str, str]] = None
  ) -> Dict[str, Any]:
      query = compress_query(query)
      if variables is None:
          variables = {}
  
      response = self._request(
          self.GRAPHQL_URL,
          {"query": query, "variables": variables},
          method="POST",
      )
      if self.dry_run():
          return self.testing_response("POST", self.GRAPHQL_URL)
  
      if "data" not in response:
          msg = f"Error fetching data with query:\n{query}\n\nvariables:\n{variables}\n\nerror:\n{json.dumps(response, indent=2)}"
          raise RuntimeError(msg)
      return response
  
imports: import json
  import subprocess
  import re
  import os
  import base64
  import logging
  from urllib import request, error
  from typing import Dict, Tuple, Any, Optional, List
label_desc: Use image node_id 4 for calling the GitHubRepo obj's underlying member method code with example usage: obj.graphql(query, variables) and returns: response, self