docs: def update_asset(self, name, label=""):
          """
          Update asset metadata.
          :rtype: github.GitReleaseAsset.GitReleaseAsset
          """
          assert isinstance(name, (str, unicode)), name
          assert isinstance(label, (str, unicode)), label
          post_parameters = {
              "name": name,
              "label": label
          }
          headers, data = self._requester.requestJsonAndCheck(
              "PATCH",
              self.url,
              input=post_parameters
          )
          return GitReleaseAsset(self._requester, headers, data, completed=True)