code: def add_wikipage(self, slug, content, **attrs):
          
          return WikiPages(self.requester).create(
              self.id, slug, content, **attrs
          )
docs: Add a Wiki page to the project and returns a :class:`WikiPage` object.
  
          :param name: name of the :class:`WikiPage`
          :param attrs: optional attributes for :class:`WikiPage`