code: def test_nested_constructors(self):
      a = [5, 6]
      b = [9, 10]
      c = [-5, 12]
      mp = geojson.MultiPoint([geojson.Point(a), b])
      self.assertEqual(mp.coordinates, [a, b])
  
      mls = geojson.MultiLineString(
          [geojson.LineString([a, b]), [a, c]]
      )
      self.assertEqual(mls.coordinates, [[a, b], [a, c]])
  
      outer = [a, b, c, a]
      poly = geojson.Polygon(geojson.MultiPoint(outer))
      other = [[1, 1], [1, 2], [2, 1], [1, 1]]
      poly2 = geojson.Polygon([outer, other])
      self.assertEqual(
          geojson.MultiPolygon([poly, poly2]).coordinates,
          [[outer], [outer, other]],
      )
  
imports: import unittest
  import geojson
label_desc: Use image node_id 2 for calling the TestGeoJSONConstructor obj's underlying member method code with example usage: obj.test_nested_constructors() without return types