Storage/src/StreamWrapper.php
public static function getClient($protocol = null)
    {
        $protocol = $protocol ?: self::DEFAULT_PROTOCOL;
        return self::$clients[$protocol];
    }
public static function getClient($protocol = null)
    {
        $protocol = $protocol ?: self::DEFAULT_PROTOCOL;
        return self::$clients[$protocol];
    }
public static function getClient ( $ protocol = null ) { $ protocol = $ protocol ? : self :: DEFAULT_PROTOCOL ; return self :: $ clients [ $ protocol ] ; }
Get the default client to use for streams.

@param string $protocol The name of the protocol to get the client for.
**Defaults to** `gs`.
@return StorageClient
Get the default client to use for streams .