public function update($user, $repo, $label, $name, $color)
	{
		// Build the request path.
		$path = '/repos/' . $user . '/' . $repo . '/labels/' . $label;

		// Build the request data.
		$data = json_encode(
			array(
				'name'  => $name,
				'color' => $color,
			)
		);

		// Send the request.
		return $this->processResponse(
			$this->client->patch($this->fetchUrl($path), $data)
		);
	}