public Tristate lookupDefaultPermission(String permission, boolean isOp) {
        Map<String, Boolean> map = getCache(isOp).get();
        return Tristate.of(map.get(permission));
    }
Queries whether a given permission should be granted by default.

@param permission the permission to query
@param isOp if the player is op
@return a tristate result
nukkit/src/main/java/me/lucko/luckperms/nukkit/inject/server/LuckPermsDefaultsMap.java