code: def data():
      with open("tests/points.geojson") as fh:
          return json.loads(fh.read())
  
imports: import os
  import json
  import base64
  import random
  from mock import patch
  import pytest
  from mapboxgl.viz import *
  from mapboxgl.errors import TokenError, LegendError
  from mapboxgl.utils import create_color_stops, create_numeric_stops
  from matplotlib.pyplot import imread
label_desc: Use image node_id 1 for calling a global function with example usage: data() and returns: json