code: def get_data(self) -> Dict[str, Any]:
      return {
          "series_preferences": self.series_preferences,
          "sub_series_preferences": self.sub_series_preferences,
          "chart_type": self.chart_type,
      }
  
imports: from fastapi import Request
  from fastapi.responses import JSONResponse
  from labml_db import Model, Index
  from labml_db.serializer.pickle import PickleSerializer
  from typing import Dict, Any, List
  from labml_app.enums import COMPUTEREnums
  from labml_app.logger import logger
  from ..analysis import Analysis
  from ..preferences import Preferences
  from ..series import SeriesModel, Series
  from ..series_collection import SeriesCollection
label_desc: Use image node_id 4 for calling the GPUPreferencesModel obj's underlying member method code with example usage: obj.get_data() and returns: dict