code: def create_label(self, name, color, description=github.GithubObject.NotSet):
          
          assert isinstance(name, (str, unicode)), name
          assert isinstance(color, (str, unicode)), color
          assert description is github.GithubObject.NotSet or isinstance(description, (str, unicode)), description
          post_parameters = {
              "name": name,
              "color": color,
          }
          if description is not github.GithubObject.NotSet:
              post_parameters["description"] = description
          headers, data = self._requester.requestJsonAndCheck(
              "POST",
              self.url + "/labels",
              input=post_parameters,
              headers={'Accept': Consts.mediaTypeLabelDescriptionSearchPreview}
          )
          return github.Label.Label(self._requester, headers, data, completed=True)
docs: :calls: `POST /repos/:owner/:repo/labels <http://developer.github.com/v3/issues/labels>`_
          :param name: string
          :param color: string
          :param description: string
          :rtype: :class:`github.Label.Label`