public static function getClient($version = "1.0") {
		$acceptable_versions = array('1.0', '1.5');
		
		if(!in_array($version, $acceptable_versions)) {
			throw new InvalidArgumentException("API Version $version is not supported, please try 1.0 or 1.5");
		}
		
		$version = str_ireplace('.', '_', $version);
		
		return ClientFactory::getBuilder()->get( "guzzle-rs-$version" );
	}