code/panels/DashboardGoogleAnalyticsPanel.php
public function IsConfigured() {
		$c = self::config();
		
		return (
			$c->email && 
			$c->key_file_path && 
			$c->profile &&
			Director::fileExists($c->key_file_path)
		);
	}
public function IsConfigured() {
		$c = self::config();
		
		return (
			$c->email && 
			$c->key_file_path && 
			$c->profile &&
			Director::fileExists($c->key_file_path)
		);
	}
A template access to determine if the credentials have been entered

@return bool