docs: def get_jar_url(version=None):
          """Get the URL to a Stanford CoreNLP jar file with a specific
          version. These jars come from Maven since the Maven version is
          smaller than the full CoreNLP distributions. Defaults to
          DEFAULT_CORENLP_VERSION."""
          if version is None:
              version = DEFAULT_CORENLP_VERSION
  
          try:
              string_type = basestring
          except NameError:
              string_type = str
  
          if not isinstance(version, string_type):
              raise TypeError("Version must be a string or None (got %r)." %
                              version)
          jar_filename = 'stanford-corenlp-%s.jar' % version
          return 'http://search.maven.org/remotecontent?filepath=' + \
                 'edu/stanford/nlp/stanford-corenlp/%s/%s' % (version,
                                                              jar_filename)