code: def edit(self, description='', files={}):
          
          data = {}
          json = None
          if description:
              data['description'] = description
          if files:
              data['files'] = files
          if data:
              json = self._json(self._patch(self._api, data=dumps(data)), 200)
          if json:
              self._update_(json)
              return True
          return False
docs: Edit this gist.
  
          :param str description: (optional), description of the gist
          :param dict files: (optional), files that make up this gist; the
              key(s) should be the file name(s) and the values should be another
              (optional) dictionary with (optional) keys: 'content' and
              'filename' where the former is the content of the file and the
              latter is the new name of the file.
          :returns: bool -- whether the edit was successful