+ if (guard != address(0)) {
+ require(Guard(guard).supportsInterface(type(Guard).interfaceId), "GS300");
+ }
function setGuard(address guard) external authorized {
        if (guard != address(0)) {
            require(Guard(guard).supportsInterface(type(Guard).interfaceId), "GS300");
        }
source: contracts/src/core/SafeModeratorOverridable.sol

contract SafeModeratorOverridable is AddressProviderService, IGuard {
