code: def predict_one(self, x: dict):
      return self.pred_model.predict_one(x)
  
imports: from __future__ import annotations
  import collections
  import functools
  import io
  import math
  import typing
  from river import anomaly, base, drift, linear_model, stats
  from river.tree import split_criterion
  from river.tree import splitter
  from .base import HoeffdingRule
label_desc: Use image node_id 10 for calling the RegRule obj's underlying member method code with example usage: obj.predict_one(x) and returns: self