code: def main():
      treebank = convert_cintil_treebank(
          "extern_data/constituency/portuguese/CINTIL/CINTIL-Treebank.xml"
      )
  
imports: import xml.etree.ElementTree
  from stanza.models.constituency import tree_reader
  from stanza.utils.datasets.constituency import utils
label_desc: Use image node_id 3 for calling a global function with example usage: main() without return types