code: def test_line_length__single_point():
      geod = Geod(ellps="WGS84")
      assert geod.line_length(1, 1) == 0
  
imports: import math
  import pickle
  from contextlib import nullcontext
  from itertools import permutations
  import numpy
  import pytest
  from numpy.testing import assert_almost_equal, assert_array_equal
  from pyproj import Geod
  from pyproj.geod import GeodIntermediateFlag, reverse_azimuth
label_desc: Use image node_id 13 for calling a global function with example usage: test_line_length__single_point() without return types