code: def test_rsphere_rectifying():
      assert rsphere.rectifying() == approx(6367449.1458)
  
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 5 for calling a global function with example usage: test_rsphere_rectifying() without return types