def GetTreeStatusUrl(self, error_ok=False):
    if (not self.tree_status_url):
        error_message = 'You must configure your tree status URL by running "git cl config".'
        self.tree_status_url = self._GetRietveldConfig('tree-status-url', error_ok=error_ok, error_message=error_message)
    return self.tree_status_url
def GetTreeStatusUrl(self, error_ok=False):
    if (not self.tree_status_url):
        error_message = 'You must configure your tree status URL by running "git cl config".'
        self.tree_status_url = self._GetRietveldConfig('tree-status-url', error_ok=error_ok, error_message=error_message)
    return self.tree_status_url