resolveGasData method
One-shot server-side gas resolution for a fully input-resolved
transaction: the server selects the gas coin and computes the budget
(gRPC simulate with doGasSelection). Returns null when the transport
does not support it (e.g. JSON-RPC); the builder then falls back to local
coin selection + a budget dry-run.
Implementation
Future<ResolvedGasData?> resolveGasData(
TransactionBlockDataBuilder data,
) async =>
null;