code: def format_list(self, at_char, user, list_name):
          '''Return formatted HTML for a list.'''
          return '<a href="https://twitter.com/%s/lists/%s">%s%s/%s</a>' \
                 % (user, list_name, at_char, user, list_namef format_list(self, at_char, user, list_name):
          '''Return formatted HTML for a list.'''
          return '<a href="https://twitter.com/%s/lists/%s">%s%s/%s</a>' \
                 % (user, list_name, at_char, user, list_name)
docs: Return formatted HTML for a list.