Minecraft Macro Mod Toggle Sneak

TOGGLE(sneak1);
IF(sneak1);
    LOG("&2[Macro] &fSneak On");
ELSE;
    LOG("&2[Macro] &fSneak Off");
ENDIF;
DO;
    IF(sneak1);
        KEYDOWN(sneak);
        WAIT(250ms);
    ELSE;
        KEYUP(sneak);
        FLAG(sneakfalse);
    ENDIF;
UNTIL(sneakfalse);