use solana_sdk::transaction::Transaction; pub struct GasOptimizer {} impl GasOptimizer { pub fn new(_rpc_client: solana_client::rpc_client::RpcClient) -> Self { Self {} } pub fn update(&mut self, _market_conditions: &crate::models::market_conditions::MarketConditions) {} pub async fn optimize(&self, txs: &[Transaction]) -> Vec { let optimized_txs = txs.to_vec(); optimized_txs } }