Description: The postTransaction function currently does not include any refund logic. As per the
comment, refunds are not supported yet, but it's essential to handle gas refunds or any other refunds
that might be necessary for the proper functioning of the contract.
route for mentioned issues is : core/tests/ts-integration/contracts/paymaster-nonce/Paymaster.sol
Description: The postTransaction function currently does not include any refund logic. As per the comment, refunds are not supported yet, but it's essential to handle gas refunds or any other refunds that might be necessary for the proper functioning of the contract. route for mentioned issues is : core/tests/ts-integration/contracts/paymaster-nonce/Paymaster.sol