code: def test_aslabeller_dict_0tag():
      func = as_labeller({"0": "<tag>0</tag>"})
      p = g + facet_wrap("~ gear + am", labeller=func)
  
      assert p == "aslabeller_dict_0tag"
  
file_path: plotnine/tests/test_facet_labelling.py
imports: from plotnine import aes, as_labeller, facet_grid, facet_wrap, geom_point, ggplot, labeller
  from plotnine.data import mtcars
label_desc: Use image node_id 10 for calling a global function with example usage: test_aslabeller_dict_0tag() without return types