code: def test_perspective_camera_constructor():
      cam = cameras.PerspectiveCamera(focal_length=22, sensor_width=33)
      assert cam.focal_length == 22
      assert cam.sensor_width == 33
  
imports: import pytest
  from kubric.core import cameras
label_desc: Use image node_id 2 for calling a global function with example usage: test_perspective_camera_constructor() without return types