code: def component_callbacks(self, app):
      @app.callback(
          Output("decisionpath-svg-" + self.name, "src"),
          [Input("decisionpath-button-" + self.name, "n_clicks")],
          [
              State("decisionpath-index-" + self.name, "value"),
              State("decisionpath-highlight-" + self.name, "value"),
              State("pos-label-" + self.name, "value"),
          ],
      )
      def update_tree_graph(n_clicks, index, highlight, pos_label):
          if index is None or not self.explainer.index_exists(index):
              raise PreventUpdate
          if n_clicks is not None and highlight is not None:
              return self.explainer.decisiontree_encoded(
                  int(highlight), index
              )
          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 3 for calling the DecisionPathGraphComponent obj's underlying member method code with example usage: obj.component_callbacks(app) and returns: self