code: def to_data(self) -> SeriesModel:
      return {
          "step": self.step,
          "value": self.value,
          "last_step": self.last_step,
          "smoothed": self.smoothed,
          "is_smoothed_updated": self.is_smoothed_updated,
          "step_gap": self.step_gap,
      }
  
imports: import math
  from typing import Dict, List, Optional, Union
  from datetime import datetime, timedelta
  import numpy
label_desc: Use image node_id 6 for calling the Series obj's underlying member method code with example usage: obj.to_data() and returns: dict