fn tempo_parallel_nonce_markers(
pending_transaction: &PendingTransaction<FoundryTxEnvelope>,
) -> Option<(Vec<TxMarker>, Vec<TxMarker>)>fn tempo_parallel_nonce_markers(
pending_transaction: &PendingTransaction<FoundryTxEnvelope>,
) -> Option<(Vec<TxMarker>, Vec<TxMarker>)>