code: def setup_class(cls):
      cls.lons = np.arange(0, 360, 60)
      cls.data2d = np.ones([3, 6]) * np.arange(6)
      cls.data4d = (
          np.ones([4, 6, 2, 3])
          * np.arange(6)[..., np.newaxis, np.newaxis]
      )
  
imports: import numpy
  import numpy.ma
  from numpy.testing import assert_array_equal
  import pytest
  from cartopy.util import add_cyclic, add_cyclic_point, has_cyclic
label_desc: Use image node_id 1 for calling the Test_add_cyclic_point obj's underlying member method code with example usage: obj.setup_class(cls) without return types