docstr: Get IQR of predicted values.
docstr_tok: ["Get","IQR","of","predicted","values","."]
code: def get_yhat_iqr(self):
      """Get IQR of predicted values."""
      return self._combine_prev(
          self.yhat_lb, self.yhat_prev_lb
      ), self._combine_prev(self.yhat_ub, self.yhat_prev_ub)
  
imports: import logging
  from typing import Dict
  from copy import copy
  from matplotlib.colors import to_rgb
  from matplotlib.dates import AutoDateLocator, AutoDateFormatter
  import matplotlib.pyplot
  import numpy
  import pandas
  import plotly
  import plotly.graph_objects
  from plotly.subplots import make_subplots
  from merlion.utils import TimeSeries, UnivariateTimeSeries
label_desc: Use image node_id 8 for calling the MTSFigure obj's underlying member method code with example usage: obj.get_yhat_iqr() and returns: self,  self