docstr: add information of feature importance to the report.
  
  Args:
      importance_ranking(:list of :list): a list of 2-item lists,
                                  item[0]: score, item[1] feature_name
      importance_threshold(float): threshold for displaying the feature
                                          name and score in tables
      maximum_number_feature(int): maximum number of features shown in bar-chart diagram
      notes(str): text to explain the block
docstr_tok: ["add","information","of","feature","importance","to","the","report",".","Args",":","importance_ranking","(",":","list","of",":","list",")",":","a","list","of","2-item","lists",",","item","[","0","]",":","score",",","item","[","1","]","feature_name","importance_threshold","(","float",")",":","threshold","for","displaying","the","feature","name","and","score","in","tables","maximum_number_feature","(","int",")",":","maximum","number","of","features","shown","in","bar-chart","diagram","notes","(","str",")",":","text","to","explain","the","block"]
code: def add_feature_importance(
      self,
      importance_ranking: List[List],
      importance_threshold: float,
      maximum_number_feature=20,
      notes=None,
  ):
      """
      add information of feature importance to the report.
  
      Args:
          importance_ranking(:list of :list): a list of 2-item lists,
                                      item[0]: score, item[1] feature_name
          importance_threshold(float): threshold for displaying the feature
                                              name and score in tables
          maximum_number_feature(int): maximum number of features shown in bar-chart diagram
          notes(str): text to explain the block
      """
      from xai.formatter.contents import FeatureImportance
  
      self.contents.append(
          FeatureImportance(
              importance_ranking=importance_ranking,
              importance_threshold=importance_threshold,
              maximum_number_feature=maximum_number_feature,
              notes=notes,
          )
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import numpy
  from typing import Tuple, Dict, List
  from xai.data import explorer
  from xai import MODE
label_desc: Use image node_id 25 for calling the Section obj's underlying member method code with example usage: obj.add_feature_importance(importance_ranking, importance_threshold, maximum_number_feature, notes) without return types