code: def test_angular_d_to_euclidean_d():
      assert_allclose(angular_dist_to_euclidean_dist(180.0), 2.0)
      assert_allclose(angular_dist_to_euclidean_dist(60.0), 1.0)
      assert_allclose(angular_dist_to_euclidean_dist(0.0), 0.0)
  
imports: import numpy
  from numpy.testing import assert_allclose
  from astroML.correlation import uniform_sphere, ra_dec_to_xyz, angular_dist_to_euclidean_dist
label_desc: Use image node_id 2 for calling a global function with example usage: test_angular_d_to_euclidean_d() without return types