public function getLoginStartUrl($redirecturl) {
		$client = $this->getClient($redirecturl);
		$authUrl = $client->createAuthUrl();
		return $authUrl;
	}
public function getLoginStartUrl($redirecturl) {
		$client = $this->getClient($redirecturl);
		$authUrl = $client->createAuthUrl();
		return $authUrl;
	}
Returns google login start auth process

@param string $redirecturl URL where to redirect after login complete