code: def show(self, **kwargs):
      # Load the HTML iframe
      html = self.create_html(**kwargs)
      map_html = self.as_iframe(html)
  
      # Display the iframe in the current jupyter notebook view
      display(HTML(map_html))
  
imports: import codecs
  import json
  import os
  from IPython.core.display import HTML, display
  import numpy
  import requests
  from mapboxgl.errors import TokenError, LegendError
  from mapboxgl.utils import color_map, numeric_map, img_encode, geojson_to_dict_list
  from mapboxgl import templates
label_desc: Use image node_id 3 for calling the MapViz obj's underlying member method code with example usage: obj.show() without return types