docs: def write_probmodelxml(model, path, encoding='utf-8', prettyprint=True):
      """
      Write model in ProbModelXML format to path.
  
      Parameters
      ----------
      model : A NetworkX graph
              Bayesian network or Markov network
      path : file or string
              File or filename to write.
              Filenames ending in .gz or .bz2 will be compressed.
      encoding : string (optional)
              Encoding for text data.
      prettyprint : bool (optional)
              If True use line breaks and indenting in output XML.
  
      Examples
      --------
      >>> G = nx.path_graph(4)
      >>> pgmpy.readwrite.write_probmodelxml(G, "test.probmodelxml")
      """
      writer = ProbModelXMLWriter(model, path, encoding=encoding,
                                  prettyprint=prettyprint)
      writer.dump(path)