use crate::models::market_conditions::MarketConditions; use crate::models::mev_opportunity::MevOpportunity; use crate::strategies::strategy::Strategy; use async_trait::async_trait; use solana_sdk::pubkey::Pubkey; use std::collections::HashMap; pub struct ArbitrageStrategy {} #[async_trait] impl Strategy for ArbitrageStrategy { fn update(&mut self, _market_conditions: &MarketConditions) {} async fn find_opportunities(&self, _target_accounts: &HashMap) -> Vec { Vec::new() } }