restorePreamble property
It can only present on successful simulation (i.e. no error) of InvokeHostFunction operations. If present, it indicates the simulation detected expired ledger entries which requires restoring with the submission of a RestoreFootprint operation before submitting the InvokeHostFunction operation. The restorePreamble.minResourceFee and restorePreamble.transactionData fields should be used to construct the transaction containing the RestoreFootprint
Implementation
RestorePreamble? restorePreamble;