code: def component_callbacks(self, app):
      @app.callback(
          Output("decisiontrees-graph-" + self.name, "figure"),
          [
              Input("decisiontrees-index-" + self.name, "value"),
              Input("decisiontrees-highlight-" + self.name, "value"),
              Input("pos-label-" + self.name, "value"),
          ],
      )
      def update_tree_graph(index, highlight, pos_label):
          if index is None or not self.explainer.index_exists(index):
              raise PreventUpdate
          highlight = None if highlight is None else int(highlight)
          return self.explainer.plot_trees(
              index,
              highlight_tree=highlight,
              pos_label=pos_label,
              higher_is_better=self.higher_is_better,
          )
  
      @app.callback(
          Output("decisiontrees-highlight-" + self.name, "value"),
          [Input("decisiontrees-graph-" + self.name, "clickData")],
      )
      def update_highlight(clickdata):
          highlight_tree = (
              int(
                  clickdata["points"][0]["text"]
                  .split("tree no ")[1]
                  .split(":")[0]
              )
              if clickdata is not None
              else None
          )
          if highlight_tree is not None:
              return highlight_tree
          raise PreventUpdate
  
imports: import dash
  from dash import html, dcc, Input, Output, State, dash_table
  from dash.exceptions import PreventUpdate
  import dash_bootstrap_components
  from ..explainers import RandomForestExplainer, XGBExplainer
  from ..dashboard_methods import *
  from .classifier_components import ClassifierRandomIndexComponent
  from .connectors import IndexConnector, HighlightConnector
  from ..None import to_html
label_desc: Use image node_id 4 for calling the DecisionTreesComponent obj's underlying member method code with example usage: obj.component_callbacks(app) and returns: self, highlight_tree