code: def add_unique_template_variables(self, options):
      pass
  
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 4 for calling the MapViz obj's underlying member method code with example usage: obj.add_unique_template_variables(options) without return types