code: def test_ggplot_ggsize():
      spec = gg.ggplot() + gg.ggsize(5, 10)
      assert spec.as_dict() == {
          "kind": "plot",
          "ggsize": {"height": 10, "width": 5},
          "mapping": {},
          "data_meta": {},
          "layers": [],
          "scales": [],
          "metainfo_list": [],
      }
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_ggplot_ggsize() without return types