code: def test_rsphere_euler():
      assert rsphere.euler(42, 82, 44, 100) == approx(6386606.829131)
  
file_path: pymap3d/src/pymap3d/tests/test_rsphere.py
imports: import pymap3d
  import pymap3d.rcurve
  import pymap3d.rsphere
  import pytest
  from pytest import approx
label_desc: Use image node_id 8 for calling a global function with example usage: test_rsphere_euler() without return types