code: def setUp(self):
      self.cube = lat_lon_cube()
  
file_path: geoviews/geoviews/tests/test_conversions.py
imports: import unittest
  from holoviews.core import HoloMap
  from holoviews.element import Curve
  from geoviews.element import is_geographic, Image, Dataset
  from geoviews.element.comparison import ComparisonTestCase
label_desc: Use image node_id 1 for calling the TestConversions obj's underlying member method code with example usage: obj.setUp() without return types