code: def test_1_step(self):
      point_a = (0, 0)
      point_b = (1, 2)
      inter = interpolate_point_pair(point_a, point_b, 1)
      assert np.allclose(inter, np.float32([[0.5, 1.0]]))
  
imports: from __future__ import print_function, division, absolute_import
  import sys
  import numpy
  from imgaug.augmentables.utils import interpolate_points, interpolate_point_pair, interpolate_points_by_max_distance, normalize_shape, normalize_imglike_shape
label_desc: Use image node_id 1 for calling the Test_interpolate_point_pair obj's underlying member method code with example usage: obj.test_1_step() without return types