prow/github/client.go
func (c *Client) GetRepoLabels(org, repo string) ([]Label, error) {
	c.log("GetRepoLabels", org, repo)
	return c.getLabels(fmt.Sprintf("/repos/%s/%s/labels", org, repo))
}
func (c *Client) GetRepoLabels(org, repo string) ([]Label, error) {
	c.log("GetRepoLabels", org, repo)
	return c.getLabels(fmt.Sprintf("/repos/%s/%s/labels", org, repo))
}
// GetRepoLabels returns the list of labels accessible to org/repo.
//
// See https://developer.github.com/v3/issues/labels/#list-all-labels-for-this-repository