listRepos(cb) {
      log(`Fetching repositories for Team ${this.__teamId}`);
      return this._requestAllPages(`/teams/${this.__teamId}/repos`, undefined, cb);
   }
List the Team's repositories
@see https://developer.github.com/v3/orgs/teams/#list-team-repos
@param {Requestable.callback} [cb] - will receive the list of repositories
@return {Promise} - the promise for the http request