code: def make_url_args(params):
      
  
      p = []
      for key, value in params.iteritems():
          if isinstance(value, (list, tuple)):
              for v in value:
                  p.append((key, v))
          elif isinstance(value, dict):
              for k, v in value.items():
                  p.append(('%s[%s]' % (key, k), v))
          elif isinstance(value, bool):
              p.append((key, str(value).lower()))
          elif value is None:
              continue
          else:
              p.append((key, str(value)))
      return urllib.urlencode(p).encode("UTF-8")
docs: Utility function for constructing a URL query string from a dictionary
      of parameters.  The dictionary's values can be of various types: lists,
      tuples, dictionaries, strings, or None.
  
      :param dict params: the key-value pairs to construct a query string from
      :rtype: string