code: def test_losint(az, tilt, lat, lon, sr):
      lla0 = (10, -20, 1e3)
      lat1, lon1, sr1 = los.lookAtSpheroid(*lla0, az, tilt=tilt)
  
      nan_ok = True if tilt == 90 else False
  
      assert lat1 == approx(lat, nan_ok=nan_ok)
      assert lon1 == approx(lon, nan_ok=nan_ok)
      assert sr1 == approx(sr, nan_ok=nan_ok)
      assert isinstance(lat1, float)
      assert isinstance(lon1, float)
      assert isinstance(sr1, float)
  
file_path: pymap3d/src/pymap3d/tests/test_look_spheroid.py
imports: from math import nan
  import pymap3d.los
  import pytest
  from pytest import approx
label_desc: Use image node_id 1 for calling a global function with example usage: test_losint(az, tilt, lat, lon, sr) without return types