code: def test_3pt_poly(self):
      projection = ccrs.OSGB(approx=True)
      polygon = sgeom.Polygon(
          [(-1000, -1000), (-1000, 200000), (200000, -1000)]
      )
      multi_polygon = projection.project_geometry(
          polygon, ccrs.OSGB(approx=True)
      )
      assert len(multi_polygon.geoms) == 1
      assert len(multi_polygon.geoms[0].exterior.coords) == 4
  
imports: import numpy
  import pytest
  import shapely.geometry
  import shapely.wkt
  import cartopy.crs
label_desc: Use image node_id 6 for calling the TestMisc obj's underlying member method code with example usage: obj.test_3pt_poly() without return types