Add minterAuthority modifier comment
@@ -11,6 +11,7 @@ contract MinterAuthority {
_TBTCSystem = _system;
}
+ // function modifier ensures modified function caller address exists as an ERC721 token
modifier onlyDeposit(){
require(TBTCSystem(_TBTCSystem).isDeposit(msg.sender), "caller must be a deposit");
_;
